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Online Tests

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Question # 1

If cosα= 4/5, then cosα/2

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Question # 2

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16

256

64

1024

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Question # 3

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Question # 4

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Question # 5

If 4 sin²θ=1, then values ofθare

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Question # 6

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

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Question # 7

The sets {1, 2, 4} and {4, 6, 8, 10} are

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Equal sets

Equivalent sets

Disjoint sets

Over lapping sets

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Question # 8

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a f(x) + c

f(x) + a

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Question # 9

3x + 4 < 0 is

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inequality

equation

identity

not inequality

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Question # 10

The set {-1,1} is

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Group under the multiplication

Group under addition

Does not form a group

Contains no identity element

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Question # 11

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Question # 12

The order of the matrix [1 2 3] is

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1 x 1

3 x 3

3 x 1

1 x 3

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Question # 13

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Question # 14

For all points (x,y) in first quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

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Question # 15

If f(α) = b2 and g (c) =d where c=b2 then (gof)(a) is

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α

c

b

d

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Question # 16

An equation containing at least one derivative of a depends variable with respect to independent variable is a (an)

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Implicit equation

Differential equation

General equation

None of these

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Question # 17

A diagonal matrix in which the diagonal elements are equal is called a

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Null matrix

Identity matrix

Scalar matrix

Row matrix

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Question # 18

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Question # 19

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Question # 20

Which one is a pair of allied angles

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(180° -θ)

(180° -θ,180° +θ)

(180° +θ)

None of these

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Question # 21

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Question # 22

The distance between the points (0 , 0) and (1, 2) is

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5

0

3

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Question # 23

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Question # 24

150°= ______

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Question # 25

For any integer k, wⁿ= ______ when n = 3k

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1

2

0

-4

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Question # 26

If G is the centroid of the triangle, then GA +GB+GC=

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0

1

-1

3

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Question # 27

The two lines y = 2x and x =2y are

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Parallel

Perpendicular

Equally inclined with axes

Congruent

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Question # 28

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Question # 29

If a = {2m/2m < 9 ,m€ p} , the (n A) =

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{2,3,4,5,6,7,8}

{2,4,6,8............16}

{ 4, 6}

{2,3,5,7}

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Question # 30

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I andII quadrants

II andIII quadrants

III andIVquadrants

none of these

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Question # 31

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additive property

multiplicative property

additive identity

multiplicative identity

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