Question # 1

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The function discontinuous at x = 0 is (1) tan x (II) cot x (III) sec x (iv)cosec x)

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I & III

I & IV

II & IV

II & III

The range of y = sin x is ______

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[1, -1]

[-1, 1]

[0, -1]

[-∞+∞]

If you are looking a high point from the ground, then the angle formed is

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Angle of elevation

Angle of depression

Right angle

Horizon

The solution set of x²- 5x + 6 = 0 is

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{1, 3}

{2, 3}

{1, 2}

None of these

The square matrix A is skew-symmetric when At =

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-B

-C

-A

-D

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6, -12, -18

-6, 4, 9

-6, -4, -9

-6, 12, 18

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sin(π+θ)=_______;

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sinθ

cosθ

-sinθ

-cosθ

The solution of the equation 3 tan²x = 1 is ____________

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none of these

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Hermitian matrix

Skew-hermitian matrix

Symmetric matrix

Identity matrix

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1

2

3

4

Which of the following integrals can be evaluated

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√2 +√3 +√5) = (√2 +√3 +√5: this property is called

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associative property w.r.t addition

commutative property

Closure property w.r.t addition

Additive identity

If a = 2i +2j, b= 3i -j and c=4i +5j, the 3b -a-2c =

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-i -15j

i-15j

i-3j

None of these

Range of y = sec x is

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-1≤ y≤ 1

y≥ 1 or y≤ -1

y≤ 1or y≥ -1

-∞ < y < +∞

An integer is chosen at random from the number ranging from 1 to 50. the probability that the integer chosen is a multiple of 2 or 3 or 10 is

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3 / 10

5 / 10

7 / 10

9 / 10

Cos 60° = ______

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1

2

1/2

3

cos2a=______;

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cos2 a-sin2 a

2cos2 a-1

1-2 sin2 a

All of these

Which of the following us a scalar

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displacement

velocity

acceleration

density

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The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

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The sum of all positive integral multiple of 5 less than 100 is

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950

760

1230

875

An open sentences formed by using the sign of equality '=' is called ______

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An identity

An equation

A polynomial

None of these

The range of y=x2 + 1 is the set of non-negative real numbers except

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0≤ y < 1

0 < y < 1

0≤ y≤ 1

0 < y≤1

Which of the following is the definition of singleton

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The objects in a set

A set having no element

A set having no subset

None of these

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