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Online Tests

ECAT Mathematics Online Test MCQs With Answers

Question # 1

If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

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Question # 2

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Question # 3

The square matrix A is skew-symmetric when At=

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-B

-C

-A

-D

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Question # 4

If n is not natural number, then the expansion (1 + x)ⁿis valid for

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Question # 5

If the roots of ax2 + b =0 are real and distinct then

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ab > 0

a = 0

ab < 0

a > 0,b > 0

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Question # 6

Express as a sum or difference: 2 sin 5θcosθ

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cos 4θ- cos 2θ

sin 4θ+ sin 2θ

cos 4θ+ cos 2θ

sin 4θ- sin 2θ

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Question # 7

Conic sections or simply conics are the curves obtained by cutting a right circular cone by

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a line

two lines

a plane

two planes

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Question # 8

A line segment whose end points lie on a circle is called

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The secant of the circle

The arc of the circle

The chord of the circle

The circumference of the circle

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Question # 9

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Question # 10

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Question # 11

If y=f(x) is a function then y is called

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dependent variable

independent variable

constant

none of these

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Question # 12

Which of the following ordered pair is a solution of the inequality x+2y<6?

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(2,3)

(2,2)

(6,0)

(1,1)

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Question # 13

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Question # 14

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Question # 15

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none of these

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Question # 16

6! = ______

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360

720

6.5.4

None of these

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Question # 17

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(g,f)

(-g,f)

(g,-f)

(-g,-f)

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Question # 18

Which of the following is not a solution of system of inequalities 2x- 3y ≤6,2x +y≥ 2,x +2y≤ 8, x≥ 0,y ≥ 0

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(1,0)

(0,4)

(3,0)

(8,0)

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Question # 19

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Question # 20

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Scalar matrix

Identity matrix

Null matrix

Symmetric matrix

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Question # 21

In-radius is denoted by

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r

η

r2

R

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Question # 22

The sum of coefficients in the binomial expansion equals to

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2

2ⁿ⁺¹

2^n-1

2ⁿ

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Question # 23

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Question # 24

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1

12

5

29

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Question # 25

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Question # 26

The point where the axis meets the parabola is called

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Directrix

Foucu

Chord

Vertix

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Question # 27

cos h²x + sin h² x

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an even function

an odd function

an even and implicit function

neither even nor a odd

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Question # 28

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1

0

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Question # 29

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0

1

2

4

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Question # 30

Graph of the question x²+ y²= 4 is

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A circle

An ellipse

A parabola

A square

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Question # 31

The real numbers which satisfy an inequality form its

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solution

coefficient

domain

range

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