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Online Tests

ECAT Mathematics Online Test MCQs With Answers

Question # 1

The set {1,-1, i, -i} form a group under

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Addition

Multiplication

Subtraction

None

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Question # 2

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(2x4)

(2x7)

(2x3)

(7x2)

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Question # 3

If #n = (n-5)2 + 5, then find #3 x #4.

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54

12

4

9

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Question # 4

The harmonic mean between a and b is

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Question # 5

The distance of the point (-2 , 3) from y-axis is

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2

-2

3

1

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Question # 6

In quadratic equation, if the replacement of y with -y leaves the equation unchanged, then the graph is

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Straight line

Circle

Hyperbola

Symmetric w.r.t.0

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Question # 7

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Question # 8

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I quadrant

II quadrant

III quadrant

IV quadrant

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Question # 9

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Question # 10

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Associative law of multiplication

Commutative law of addition

Commutative law of multiplication

Associative law of addition

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Question # 11

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Question # 12

The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

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Question # 13

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Question # 14

A quadrilateral whose diagonals are perpendicular bisector of each other is

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Square

Rectangle

Rhombus

Parallelogram

Trapezium

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Question # 15

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Right angled

Obtuse angled

Isosceles

Equilateral

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Question # 16

At a point 15 meters away from the base of a 15 meters high house, the angle of elevation of the top is

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90°

60°

30°

45°

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Question # 17

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Question # 18

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Question # 19

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Question # 20

The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

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Question # 21

a + x is ______

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A trinomial

A binomial

A monomial

None of these

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Question # 22

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Question # 23

A rectangular hyperbola whose centre is C is cut by any circle of radius r in four points P, Q, R and S. Then CP²+ CQ²+ CR²+ CS²=

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r²

2 r²

3 r²

4 r²

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Question # 24

(fog)′(x) =f′(g(x))g′(x) is derivative by

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Chain rule

Reciprocal rule

Power rule

Product rule

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Question # 25

Period of sin x is

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Question # 26

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1

2

-2

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Question # 27

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Question # 28

The term involving x⁴in the expansion of (3 - 2x)⁷is

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120

1512

1250

15120

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Question # 29

The angle of depression of a point A on the ground from the top of the tower is 30𝜊,then the angle of elevation of the top of the tower at the point A is

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60𝜊

40𝜊

41𝜊

30𝜊

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Question # 30

The end points of the major axis of the ellipse are called its

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Foci

Vertices

Co - vertices

None of these

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Question # 31

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0

1

13

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