Question # 1

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Domain of cosh x is

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R

R -{0}

[1,∞)

[0,∞)

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3x²+ 2

3x²+ 2x + 3

x³+ x²

none of these

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1

0

-2

3

i =

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√1

√2

√-2

√-1

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The symbol of irrational is

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W

N

Q

Q'

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25

16

5

0

The multiplicative inverse of 2/3 is

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3/2

-2/3

-3/2

1

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The triangle that does not have a right angle is called.

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Isosceles triangle

right angle triangle

equivalent triangle

oblique triangle

csc(-π/2) = __________;

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0

1

-1

Undefined

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0

1

none of these

Domain of cos x is ______

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(0.90)^1/2is equal to

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0.99

0.90

0.80

0.88

Every natural number is

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A prime number

An irrational number

An integer

An even number

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Square matrix

Row matrix

Symmetric matrix

Null matrix

If x³+ 4x³- 2x +5 is divided by x - 1, then the reminder is

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8

6

4

None of these

For an A.P common difference d

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Can be zero

May or may not zero

Cannot be zero

None of these

sin(a-90°)=______;

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sina

cosa

-sinθ

-cosa

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none of these

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

The nth term of a G.P. is

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a₁rⁿ

a₁rⁿ⁺¹

a₁r^n-1

a₁r^-n

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1/2

2

1/4

4

A cone is generated by all lines through a fixed point and the circumference of

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a Circle

an ellipse

a Hyperbola

None of these

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all are correct

The number z so that the triangle with vertices A(1,-1,0),B(-2,2,1)and C(0,2,z) is a right triangle with right angle at vertex C

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1,2

-1,-2

2,-1

-2,1

Tan^-11/x = ______

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sin x

sec^-1X

cot^-1X

None of these

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If E = { } , then P(E)

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∅

{ }

{(2),(4),(6)....}

(∅)

For trival solution |A| is

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A

|A| is non zero

A = 0

None of these

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