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Online Tests

ECAT Mathematics Online Test MCQs With Answers

Question # 1

For every positive integers n 1+5+9+....+ (4n - 3) is

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n(2n - 1)

(2n - 1)

n - 1

n

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Question # 2

If B-A≠φ , then n(B-A) is equal to

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n(a)+n(c)

n(c)-n(a)

n(a)-n(c)

None of these

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Question # 3

The period of|sin⁡2x| is

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π/2

-π/2

π

π/3

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Question # 4

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real part of z

imaginary part of z

conjugate of z

modulus of z

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Question # 5

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Question # 6

A square matrix A = [aij] is lower triangular matrix when

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aij = 0 for all i<j

bij = 0

cij = 0

dij = 0

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Question # 7

Which of the following does not represent absolute value of a vector

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magnitude

length

norm

number

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Question # 8

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Question # 9

The number of terms in the expansion of (a + x)¹²is

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13

12

11

10

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Question # 10

The transpose of a row matrix is a ______

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Zero matrix

Diagonal matrix

Column matrix

Row matrix

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Question # 11

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2

4

6

8

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Question # 12

Ifᵨ> 1 , then the conic, is:

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Ellipse

Parabola

Hyperbola

None of these

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Question # 13

The equation of the circle with centre (-h, -k) and radius r is

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(x +h)²+ (y+k)²= r²

(x +h)²+ (y-k)²= r²

(x -h)²+ (y+k)²= r²

(x -h)²+ (y-k)²= r²

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Question # 14

x = r2, y = 1 are the parametric equation of

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Circle

Hyperbola

Ellipse

Parabola

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Question # 15

Derivative of a w.r.t x is

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0

1

x

x

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Question # 16

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184

none of these

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Question # 17

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Question # 18

If Cosθ=0, thenθ= ______

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nπ/2

(2n + 1)π/2

(2n - 1)π/2

(4n + 1)π/2

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Question # 19

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0

1

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Question # 20

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4A - 3I

3A - 4I

A - I

None of these

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Question # 21

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Question # 22

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

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Question # 23

The distance of the points (3, 4, 5) from y-axis is

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Question # 24

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Question # 25

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square root function

identity function

linear function

quadratic function

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Question # 26

How many arrangements of the letters of the word PAKISTAN cab be made

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Question # 27

The period of the function f(x) = sin⁴x + cos⁴x is

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π

π/2

2π

None of these

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Question # 28

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Question # 29

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Question # 30

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X = 100 sinθ

X = 10 sinθ

X = 100 secθ

None of these

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Question # 31

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