Class 9 Maths MCQs Tests

Chapter 1

Practice Test No 1

Practice Test No 2

Challenge Test

Chapter 2

Practice Test No 1

Challenge Test

Chapter 3

Practice Test No 1

Challenge Test

Chapter 4

Practice Test No 1

Challenge Test

Chapter 5

Practice Test No 1

Challenge Test

Class 9 Maths MCQs Tests

This page contains all the online tests for Class 9 Maths MCQs. Students should do the practice of all these tests for getting good marks in FBISE board exams. We have prepared all the possible MCQs of Class 9 Mathematics and included important MCQs from past papers as well.

Chapter 1 Practice MCQs Test No 1

Class 9 Mathematics
Chapter 1
Practice MCQs Test No 1

1 / 12

If $X+\begin{bmatrix} -1 & -2 \\ 0 & -1 \end{bmatrix}=\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$ , then X is:

\begin{bmatrix} 2 & 0 \\ 0 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 2 \\ 0 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 2 \\ 2 & 0 \end{bmatrix}

\begin{bmatrix} 0 & 2 \\ 2 & 2 \end{bmatrix}

2 / 12

$\left[ \begin{matrix} 3 \\ 1 \end{matrix} \right] \left[ 1\qquad 2 \right]$ = __________

None

\begin{bmatrix} 4 & 2 \\ 6 & 3 \end{bmatrix}

\begin{bmatrix} 3 & 6 \\ 1 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 3 \\ 4 & 0 \end{bmatrix}

3 / 12

$A=\begin{bmatrix} 0 & 0 \\ 0 & 0 \end{bmatrix}$ is called ______ matrix.

Singular

Zero

Unit

Scalar

4 / 12

The idea of matrices was given by _______________.

Al-Khwarizmi

Cramer

Arthur Kayley

Henry Briggs

5 / 12

Order of transpose of $\begin{bmatrix} 2 & 1 \\ 0 & 1 \\ 3 & 2 \end{bmatrix}$ is?

1-by-3

3-by-1

3-by-2

2-by-3

6 / 12

Which is order of a rectangular matrix?

2-by-1

2-by-2

4-by-4

3-by-3

7 / 12

The matrix [2 -1 7] is called a ________ matrix.

Null

Column

Square

Row

8 / 12

The matrix $N=\left[ \begin{matrix} 2 \\ 0 \\ 1 \end{matrix} \right]$ is a _______ matrix.

Square

Column

Null

Row

9 / 12

Which is order of a square matrix?

3-by-2

1-by-2

2-by-2

2-by-1

10 / 12

$\begin{bmatrix} 2 & 0 \\ 0 & 2 \end{bmatrix}$

is called _______ matrix.

Scalar

Unit

Zero

Singular

11 / 12

The order of the matrix

$\begin{bmatrix} 1 & 2 \end{bmatrix}$

is:

1-by-1

1-by-2

2-by-2

2-by-1

12 / 12

Product of $\left[ x\quad \quad y \right] \left[ \begin{matrix} 2 \\ -1 \end{matrix} \right]$ is:

[x+2y]

[2x-y]

[x-2y]

[2x+y]

Your score is

Practice MCQs Test No 2

Class 9 Mathematics
Chapter 1
Practice MCQs Test No 2

1 / 12

Matrix $A=\left[ \begin{matrix} 1 & 2 \\ 1 & 1 \\ 2 & 3 \end{matrix} \right]$ is a ______ matrix.

Row

Square

Column

Rectangular

2 / 12

If A is a matrix then its transpose is donated by:

A^-1

(A^t)^t

A^c

A^t

3 / 12

The matrix $A=\left[ \begin{matrix} 2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2 \end{matrix} \right]$ is a ________ matrix.

Identity

Zero

Diagonal

Scalar

4 / 12

The scalar matrix and identity matrices are both _________ matrices.

Rectangular

Diagonal

Zero

None

5 / 12

The matrix $A=\left[ \begin{matrix} 1 & 2 & 3 \\ -1 & 0 & -2 \\ 0 & 1 & 3 \end{matrix} \right]$ is a ______ matrix.

Column

Row

Rectangular

Square

6 / 12

Additive inverse of $A=\begin{bmatrix} 1 & -2 \\ 0 & -1 \end{bmatrix}$ is:

A=\begin{bmatrix} 1 & -2 \\ 0 & 1 \end{bmatrix}

A=\begin{bmatrix} -1 & -2 \\ 0 & -1 \end{bmatrix}

A=\begin{bmatrix} -1 & 2 \\ 0 & 1 \end{bmatrix}

A=\begin{bmatrix} 1 & -2 \\ 0 & -1 \end{bmatrix}

7 / 12

A square matrix A is symmetric if:

(A^t)^t=-A^t

None

A^t=A

A^c=A

8 / 12

The matrix $A=\left[ \begin{matrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{matrix} \right]$ is a _______ matrix.

Identity

Column

Rectangular

Scalar

9 / 12

The matrix $A=\left[ \begin{matrix} 0 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 3 \end{matrix} \right]$ is a _______ matrix.

Diagonal

Zero

Scalar

Identity

10 / 12

A square matrix A is skew-symmetric if:

A^c=-A

A^t=-A

None

(A^t)^t=-A^t

11 / 12

If $A=\left[ \begin{matrix} 1 & -2 \\ 3 & 4 \end{matrix} \right]$ then -A is:

A=\left[ \begin{matrix} 1 & 2 \\ 3 & 4 \end{matrix} \right]

A=\left[ \begin{matrix} -1 & 2 \\ -3 & -4 \end{matrix} \right]

A=\left[ \begin{matrix} 1 & -2 \\ 3 & 4 \end{matrix} \right]

A=\left[ \begin{matrix} -1 & -2 \\ -3 & -4 \end{matrix} \right]

12 / 12

Every diagonal matrix is not a ________ matrix.

Scalar or Identity

Scalar

Identity

None

Your score is

Full Chapter Challenge Test

/24

Class 9 Mathematics
Chapter 1
Full Chapter Challenge Test

1 / 24

The idea of matrices was given by _______________.

Henry Briggs

Al-Khwarizmi

Arthur Kayley

Cramer

2 / 24

Which is order of a rectangular matrix?

2-by-2

3-by-3

4-by-4

2-by-1

3 / 24

$\left[ \begin{matrix} 3 \\ 1 \end{matrix} \right] \left[ 1\qquad 2 \right]$ = __________

\begin{bmatrix} 4 & 2 \\ 6 & 3 \end{bmatrix}

None

\begin{bmatrix} 2 & 3 \\ 4 & 0 \end{bmatrix}

\begin{bmatrix} 3 & 6 \\ 1 & 2 \end{bmatrix}

4 / 24

A square matrix A is symmetric if:

A^c=A

None

A^t=A

(A^t)^t=-A^t

5 / 24

The matrix $A=\left[ \begin{matrix} 2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2 \end{matrix} \right]$ is a ________ matrix.

Zero

Identity

Diagonal

Scalar

6 / 24

The scalar matrix and identity matrices are both _________ matrices.

None

Rectangular

Diagonal

Zero

7 / 24

Order of transpose of $\begin{bmatrix} 2 & 1 \\ 0 & 1 \\ 3 & 2 \end{bmatrix}$ is?

3-by-1

2-by-3

3-by-2

1-by-3

8 / 24

Product of $\left[ x\quad \quad y \right] \left[ \begin{matrix} 2 \\ -1 \end{matrix} \right]$ is:

[2x-y]

[x-2y]

[x+2y]

[2x+y]

9 / 24

The matrix $N=\left[ \begin{matrix} 2 \\ 0 \\ 1 \end{matrix} \right]$ is a _______ matrix.

Column

Row

Square

Null

10 / 24

If A is a matrix then its transpose is donated by:

A^t

A^-1

(A^t)^t

A^c

11 / 24

$A=\begin{bmatrix} 0 & 0 \\ 0 & 0 \end{bmatrix}$ is called ______ matrix.

Zero

Singular

Unit

Scalar

12 / 24

A square matrix A is skew-symmetric if:

A^c=-A

None

(A^t)^t=-A^t

A^t=-A

13 / 24

The order of the matrix

$\begin{bmatrix} 1 & 2 \end{bmatrix}$

is:

1-by-1

2-by-2

1-by-2

2-by-1

14 / 24

If $A=\left[ \begin{matrix} 1 & -2 \\ 3 & 4 \end{matrix} \right]$ then -A is:

A=\left[ \begin{matrix} 1 & -2 \\ 3 & 4 \end{matrix} \right]

A=\left[ \begin{matrix} -1 & 2 \\ -3 & -4 \end{matrix} \right]

A=\left[ \begin{matrix} 1 & 2 \\ 3 & 4 \end{matrix} \right]

A=\left[ \begin{matrix} -1 & -2 \\ -3 & -4 \end{matrix} \right]

15 / 24

The matrix $A=\left[ \begin{matrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{matrix} \right]$ is a _______ matrix.

Column

Rectangular

Scalar

Identity

16 / 24

If $X+\begin{bmatrix} -1 & -2 \\ 0 & -1 \end{bmatrix}=\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$ , then X is:

\begin{bmatrix} 0 & 2 \\ 2 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 2 \\ 0 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 2 \\ 2 & 0 \end{bmatrix}

\begin{bmatrix} 2 & 0 \\ 0 & 2 \end{bmatrix}

17 / 24

The matrix $A=\left[ \begin{matrix} 0 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 3 \end{matrix} \right]$ is a _______ matrix.

Zero

Diagonal

Scalar

Identity

18 / 24

The matrix $A=\left[ \begin{matrix} 1 & 2 & 3 \\ -1 & 0 & -2 \\ 0 & 1 & 3 \end{matrix} \right]$ is a ______ matrix.

Row

Rectangular

Column

Square

19 / 24

Additive inverse of $A=\begin{bmatrix} 1 & -2 \\ 0 & -1 \end{bmatrix}$ is:

A=\begin{bmatrix} -1 & -2 \\ 0 & -1 \end{bmatrix}

A=\begin{bmatrix} 1 & -2 \\ 0 & 1 \end{bmatrix}

A=\begin{bmatrix} -1 & 2 \\ 0 & 1 \end{bmatrix}

A=\begin{bmatrix} 1 & -2 \\ 0 & -1 \end{bmatrix}

20 / 24

$\begin{bmatrix} 2 & 0 \\ 0 & 2 \end{bmatrix}$

is called _______ matrix.

Zero

Scalar

Unit

Singular

21 / 24

Matrix $A=\left[ \begin{matrix} 1 & 2 \\ 1 & 1 \\ 2 & 3 \end{matrix} \right]$ is a ______ matrix.

Row

Square

Rectangular

Column

22 / 24

Which is order of a square matrix?

2-by-2

2-by-1

3-by-2

1-by-2

23 / 24

The matrix [2 -1 7] is called a ________ matrix.

Square

Null

Column

Row

24 / 24

Every diagonal matrix is not a ________ matrix.

None

Identity

Scalar

Scalar or Identity

Your score is

The average score is 83%

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Chapter 2 Practice MCQs Test No 1

Class 9 Mathematics
Chapter 2
Practice MCQs Test No 1

1 / 20

If 𝑧 < 0 then 𝑥 < 𝑦 ⇒

𝑥𝑧 > 𝑦𝑧

𝑥𝑧 < 𝑦𝑧

𝑥𝑧 ≤ 𝑦𝑧

𝑥𝑧 = 𝑦𝑧

2 / 20

For any 𝑎, 𝑏, 𝑐 ∈ 𝑅 if 𝑎 > 𝑏 and 𝑏 > 𝑐 then 𝑎 > 𝑐. Name of the property is:

Trichotomy

Additive

Closure

Transitive

3 / 20

The solution set of x²+1=0 is:

None

{ i , -i }

{ -i , -i }

{ i , i }

4 / 20

Every real number is a:

Positive number

Negative number

Complex number

Rational number

5 / 20

(4)^2/3 with radical sign is:

³√4

³√4²

³√4³

√4³

6 / 20

If 𝑎, 𝑏 ∈ 𝑅 then only one of 𝑎 < 𝑏 𝑜𝑟 𝑎 = 𝑏 𝑜𝑟 𝑎 > 𝑏 holds is called:

Associative property

Transitive property

Symmetric property

Trichotomy property

7 / 20

If 𝑖² = −1 then 𝑖 =?

±1

-1

√−1

8 / 20

A non-terminating, non-recurring decimal represents:

An irrational number

A prime number

A natural number

A rational number

9 / 20

The conjugate of 5 + 4𝑖 is:

5 − 4𝑖

−5 + 4𝑖

5 + 4𝑖

−5 − 4𝑖

10 / 20

Imaginary part of −𝑖(3𝑖 + 2) is:

-3

-2

11 / 20

𝑖⁷ = _________

−1

−𝑖

𝑖

12 / 20

The value of 𝑖¹⁸ is:

-1

-i

13 / 20

Name the property of real numbers used in π+(-π)=0:

Additive inverse

Multiplicative identity

Additive identity

Multiplicative inverse

14 / 20

Product of a complex number and its conjugate is always a non-negative _______.

Real

Irrational

Rational

None

15 / 20

If 𝑍 = −1 − 𝑖 , then 𝑍 (bar) =?

0 + 𝑖

−1 + 𝑖

1 + 𝑖

1 − 𝑖

16 / 20

√3 . √3 is a/an ________ number.

Rational

None

Irrational

Real

17 / 20

In ³√35 the radicand is:

1/3

None of these

18 / 20

π is a/an ________ number.

Real

Rational

Irrational

None

19 / 20

10⁻² = _________

0.1

-100

0.001

0.01

20 / 20

Real part of 𝟐𝒂𝒃(𝒊 + 𝒊^𝟐) is:

2𝑎𝑏

2𝑎𝑏𝑖

−2𝑎𝑏

−2𝑎𝑏𝑖

Your score is

The average score is 61%

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Full Chapter Challenge Test

Class 9 Mathematics
Chapter 2
Full Chapter Challenge Test

Write 123 if you don't want to give your mobile number.

1 / 20

For any 𝑎, 𝑏, 𝑐 ∈ 𝑅 if 𝑎 > 𝑏 and 𝑏 > 𝑐 then 𝑎 > 𝑐. Name of the property is:

Transitive

Closure

Additive

Trichotomy

2 / 20

Name the property of real numbers used in π+(-π)=0:

Additive inverse

Multiplicative inverse

Multiplicative identity

Additive identity

3 / 20

The value of 𝑖¹⁸ is:

-i

-1

4 / 20

Product of a complex number and its conjugate is always a non-negative _______.

None

Real

Irrational

Rational

5 / 20

A non-terminating, non-recurring decimal represents:

A prime number

An irrational number

A natural number

A rational number

6 / 20

The conjugate of 5 + 4𝑖 is:

−5 − 4𝑖

5 + 4𝑖

−5 + 4𝑖

5 − 4𝑖

7 / 20

10⁻² = _________

0.1

-100

0.01

0.001

8 / 20

If 𝑖² = −1 then 𝑖 =?

±1

√−1

-1

9 / 20

Every real number is a:

Complex number

Rational number

Positive number

Negative number

10 / 20

In ³√35 the radicand is:

1/3

None of these

11 / 20

𝑖⁷ = _________

−1

−𝑖

𝑖

12 / 20

√3 . √3 is a/an ________ number.

None

Real

Rational

Irrational

13 / 20

The solution set of x²+1=0 is:

{ i , i }

{ i , -i }

{ -i , -i }

None

14 / 20

Imaginary part of −𝑖(3𝑖 + 2) is:

-3

-2

15 / 20

Real part of 𝟐𝒂𝒃(𝒊 + 𝒊^𝟐) is:

2𝑎𝑏

−2𝑎𝑏

−2𝑎𝑏𝑖

2𝑎𝑏𝑖

16 / 20

π is a/an ________ number.

None

Irrational

Real

Rational

17 / 20

If 𝑧 < 0 then 𝑥 < 𝑦 ⇒

𝑥𝑧 ≤ 𝑦𝑧

𝑥𝑧 < 𝑦𝑧

𝑥𝑧 > 𝑦𝑧

𝑥𝑧 = 𝑦𝑧

18 / 20

If 𝑍 = −1 − 𝑖 , then 𝑍 (bar) =?

1 − 𝑖

1 + 𝑖

0 + 𝑖

−1 + 𝑖

19 / 20

(4)^2/3 with radical sign is:

√4³

³√4²

³√4³

³√4

20 / 20

If 𝑎, 𝑏 ∈ 𝑅 then only one of 𝑎 < 𝑏 𝑜𝑟 𝑎 = 𝑏 𝑜𝑟 𝑎 > 𝑏 holds is called:

Trichotomy property

Associative property

Symmetric property

Transitive property

Your score is

The average score is 81%

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Chapter 3 Practice MCQs Test No 1

Class 9 Mathematics
Chapter 3
Practice MCQs Test No 1

1 / 10

The relation $y=\log _{ z }{ x }$ implies

{ x }^{ y }=z

{ x }^{ z }=y

{ z }^{ y }=x

{ y }^{ z }=x

2 / 10

$\log _{ b }{ a } \times \log _{ c }{ b }$ can be written as

\log _{ a }{ c }

\log _{ b }{ c }

\log _{ a }{ b }

\log _{ c }{ a }

3 / 10

The logarithm of any number to itself as a base is:

4 / 10

The value of $\log { \left( \frac { p }{ q } \right) }$ is

\log { q\quad - } \log { p }

\log { p\quad + } \log { q }

\frac { \log { p } }{ \log { q } }

\log { p\quad - } \log { q }

5 / 10

$\log { { m }^{ n } }$ can be written as

n\log { m }

{ \left( \log { m } \right) }^{ n }

m\log { n }

\log { \left( mn \right) }

6 / 10

$\log { p\quad - }\log { q }$ is same as

\log { (p-q) }

\log { \left( \frac { p }{ q } \right) }

\log { \left( \frac { q }{ p } \right) }

\frac { \log { p } }{ \log { q } }

7 / 10

$\log _{ y }{ x }$

\frac { \log _{ z }{ y } }{ \log _{ z }{ x } }

\frac { \log _{ z }{ x } }{ \log _{ y }{ z } }

\frac { \log _{ z }{ x } }{ \log _{ z }{ y } }

\frac { \log _{ x }{ z } }{ \log _{ y }{ z } }

8 / 10

log e= _______, where ${ e\approx 2.718 }$

0.4343

\infty

9 / 10

The logarithm of unity to any base is:

10 / 10

If ${ a }^{ x }=n$ ,

x=\log _{ n }{ a }

a=\log _{ n }{ x }

x=\log _{ a }{ n }

a=\log _{ x }{ n }

Your score is

The average score is 58%

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Full Chapter Challenge Test

Class 9 Mathematics
Chapter 3
Full Chapter Challenge Test

1 / 10

$\log { { m }^{ n } }$ can be written as

{ \left( \log { m } \right) }^{ n }

\log { \left( mn \right) }

n\log { m }

m\log { n }

2 / 10

$\log { p\quad - }\log { q }$ is same as

\log { \left( \frac { p }{ q } \right) }

\log { (p-q) }

\log { \left( \frac { q }{ p } \right) }

\frac { \log { p } }{ \log { q } }

3 / 10

The value of $\log { \left( \frac { p }{ q } \right) }$ is

\log { p\quad + } \log { q }

\frac { \log { p } }{ \log { q } }

\log { q\quad - } \log { p }

\log { p\quad - } \log { q }

4 / 10

$\log _{ b }{ a } \times \log _{ c }{ b }$ can be written as

\log _{ a }{ c }

\log _{ c }{ a }

\log _{ a }{ b }

\log _{ b }{ c }

5 / 10

$\log _{ y }{ x }$

\frac { \log _{ z }{ y } }{ \log _{ z }{ x } }

\frac { \log _{ x }{ z } }{ \log _{ y }{ z } }

\frac { \log _{ z }{ x } }{ \log _{ z }{ y } }

\frac { \log _{ z }{ x } }{ \log _{ y }{ z } }

6 / 10

The logarithm of any number to itself as a base is:

7 / 10

The logarithm of unity to any base is:

8 / 10

log e= _______, where ${ e\approx 2.718 }$

0.4343

\infty

9 / 10

If ${ a }^{ x }=n$ ,

a=\log _{ x }{ n }

x=\log _{ a }{ n }

a=\log _{ n }{ x }

x=\log _{ n }{ a }

10 / 10

The relation $y=\log _{ z }{ x }$ implies

{ y }^{ z }=x

{ x }^{ y }=z

{ z }^{ y }=x

{ x }^{ z }=y

Your score is

The average score is 84%

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Chapter 4 Practice MCQs Test No 1

Class 9 Mathematics
Chapter 4
Practice MCQs Test No 1

1 / 8

$(3+\sqrt { 2 } )(3-\sqrt { 2 } )$ is equal to:

-1

-7

2 / 8

${ a }^{ 3 }+{ b }^{ 3 }$ is equal to:

(a-b)({ a }^{ 2 }+ab+{ b }^{ 2 })

(a-b)({ a }^{ 2 }-ab+{ b }^{ 2 })

(a+b)({ a }^{ 2 }+ab+{ b }^{ 2 })

(a+b)({ a }^{ 2 }-ab+{ b }^{ 2 })

3 / 8

The degree of polynomial $4{ x }^{ 4 }+3{ x }^{ 2 }y$ is

4 / 8

Conjugate of surd $a+\sqrt { b }$ is

a+\sqrt { b }

a-\sqrt { b }

-a-\sqrt { b }

-a+\sqrt { b }

5 / 8

$\sqrt { a } +\sqrt { b } )(\sqrt { a } -\sqrt { b } )$ is equal to:

a-b

{ (a+b) }^{ 2 }

{ (a-b) }^{ 2 }

a+b

6 / 8

$4x+3y-2$ is an algebraic _________.

In-equation

Sentence

Equation

Expression

7 / 8

$\frac { { a }^{ 2 }-{ b }^{ 2 } }{ a+b }$ is equal to:

a-b

a+b

{ (a-b) }^{ 2 }

{ (a+b) }^{ 2 }

8 / 8

$\frac { 1 }{ a-b } -\frac { 1 }{ a+b }$ is equal to:

\frac { 2a }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { -2a }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { -2b }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { 2b }{ { a }^{ 2 }-{ b }^{ 2 } }

Your score is

The average score is 56%

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Full Chapter Challenge Test

Class 9 Mathematics
Chapter 4
Full Chapter Challenge Test

1 / 8

$(3+\sqrt { 2 } )(3-\sqrt { 2 } )$ is equal to:

-1

-7

2 / 8

Conjugate of surd $a+\sqrt { b }$ is

a-\sqrt { b }

a+\sqrt { b }

-a-\sqrt { b }

-a+\sqrt { b }

3 / 8

$\sqrt { a } +\sqrt { b } )(\sqrt { a } -\sqrt { b } )$ is equal to:

{ (a+b) }^{ 2 }

a-b

{ (a-b) }^{ 2 }

a+b

4 / 8

$\frac { { a }^{ 2 }-{ b }^{ 2 } }{ a+b }$ is equal to:

a+b

{ (a+b) }^{ 2 }

{ (a-b) }^{ 2 }

a-b

5 / 8

The degree of polynomial $4{ x }^{ 4 }+3{ x }^{ 2 }y$ is

6 / 8

$4x+3y-2$ is an algebraic _________.

Expression

Equation

In-equation

Sentence

7 / 8

${ a }^{ 3 }+{ b }^{ 3 }$ is equal to:

(a+b)({ a }^{ 2 }+ab+{ b }^{ 2 })

(a-b)({ a }^{ 2 }+ab+{ b }^{ 2 })

(a-b)({ a }^{ 2 }-ab+{ b }^{ 2 })

(a+b)({ a }^{ 2 }-ab+{ b }^{ 2 })

8 / 8

$\frac { 1 }{ a-b } -\frac { 1 }{ a+b }$ is equal to:

\frac { -2b }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { -2a }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { 2b }{ { a }^{ 2 }-{ b }^{ 2 } }

\frac { 2a }{ { a }^{ 2 }-{ b }^{ 2 } }

Your score is

The average score is 87%

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Chapter 5 Practice MCQs Test No 1

Class 9 Mathematics
Chapter 5
Practice MCQs Test No 1

1 / 8

Factors of $27x^{ 3 }-\frac { 1 }{ x^{ 3 } }$ are:

(3x-\frac { 1 }{ x } )(9x^{ 2 }-3+\frac { 1 }{ { x }^{ 2 } } )

(3x+\frac { 1 }{ x } )(9x^{ 2 }+3+\frac { 1 }{ { x }^{ 2 } } )

(3x-\frac { 1 }{ x } )(9x^{ 2 }+3+\frac { 1 }{ { x }^{ 2 } } )

(3x+\frac { 1 }{ x } )(9x^{ 2 }-3+\frac { 1 }{ { x }^{ 2 } } )

2 / 8

Factors of ${ 3x }^{ 2 }-x-2$ are:

(x+1) (3x+2)

(x+1) (3x-2)

(x-1) (3x-2)

(x-1) (3x+2)

3 / 8

Factors of 8x³+27y³ are:

(2x+3y), (4x²-6xy+9y²)

(2x-3y), (4x²+9y²)

(2x-3y), (4x²-9y²)

(2x-3y), (4x²+6xy+9y²)

4 / 8

What should be added to complete the square of $9a^{ 2 }-12ab$ ?

-4b²

16b²

4b²

-16b²

5 / 8

Factors of x²- 5x + 6 are:

x+6, x-1

x+1, x-6

x+2, x+3

x-2, x-3

6 / 8

Factors of $5x^{ 2 }-17xy-12y^{ 2 }$ are:

(5x-4y)(x+3y)

(x+4y)(5x+3y)

(x-4y)(5x+3y)

(x-4y)(5x-3y)

7 / 8

Find ‘m’ so that $x^{ 4 }+4x^{ 2 }+m$ is a complete square:

-8

8 / 8

Factors of $a^{ 4 }-4b^{ 4 }$ are:

(a-b)(a+b)(a^{ 2 }-4b^{ 2 })

(a-2b)(a^{ 2 }+2b^{ 2 })

(a-b)(a+b)(a^{ 2 }+4b^{ 2 })

(a^{ 2 }-2b^{ 2 })(a^{ 2 }+2b^{ 2 })

Your score is

The average score is 45%