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Online Tests

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Question # 1

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2x cos x2

2sinxcosx

- sin x2

2x sin x2

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Question # 2

The symbol of irrational is

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W

N

Q

Q'

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Question # 3

If x-2 and x-1 both are factors of x³-3x³+2x-4p, then P must equal to

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1

2

0

-2

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Question # 4

For all points (x,y) in fourth 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 # 5

Sine rule for a triangle states that

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a/sin A = b/sin B = c/sin C

sin A/a = sin B/b = sin C/c

a/sin A + b/sin B + c/sin C

2a/sin A = 2b/sin B = 2c/sin C

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Question # 6

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Question # 7

The smallest positive root of the equation tan x - x = 0 lies on

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Question # 8

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Question # 9

Period of tan x is ______

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Question # 10

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Question # 11

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none of these

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Question # 12

If P = {x/x = p/q where p,q∈ Z and q≠ 0}, then P is the set of

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Irrational numbers

Even numbers

Rational numbers

Whole numbers

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Question # 13

The tangents drawn from the point P to a circle are real and distinct if

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P is on the circle

P is inside the circle

P is outside the circle

none of these

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Question # 14

Which conjunction is not true ?

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Question # 15

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none of these

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Question # 16

Geometrically the modulus of a complex number represents its distance from the

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Point (1,0)

Point (0,1)

Point (1,1)

Point (0,0)

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Question # 17

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Question # 18

The set of even prime numbers is

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(2,4,6,8,10}

{2,4,6,8,10,12}

{1,3,5,7,9}

{2}

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Question # 19

A relation in which the equality is true only for some values of the unknown is called

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An identity

An equation

A polynomial

None

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Question # 20

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Question # 21

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Question # 22

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Question # 23

The center of the sphore which passes thro' (a, 0, 0), (0, b, 0), (0, 0, c) and (0, 0, 0) is

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Question # 24

What is the number of elements of the power set of { }

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0

1

2

3

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Question # 25

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

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2

-2

3

1

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Question # 26

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1

2

3

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Question # 27

If A is any matrix then its additive inverse is

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A

A^-1

A^t

-A

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Question # 28

The middle term of [1/x-x]¹⁰is

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-152

-252

371

-421

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Question # 29

The coordinates of a point P(x,y) referred to XY-system are

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(x+y,y+k)

(x-h,y-k)

(x,y)

(x-h,y-k)

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Question # 30

Let S_ndenote the sum of the first n terms of an A.P. If S_2n= 3 S_n: S_nis equal to

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4

6

8

10

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Question # 31

The number of significant numbers which can be formed by using any number of the digits 0, 1, 2, 3, 4 but using each not more than once in each number is

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260

356

410

96

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