Question # 1

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°

Derivative of sin x w.r.t. sin x is

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0

1

sin x

cos x

If the domain of the function f: x⟶ 2x³+ 1 is {-1,2,3}, the range of the function is

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{3,2,5}

{1,3,9}

{-1,-2,-3}

{3,9,19}

For an arithmetic series to be convergent it is necessary that the series has

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Finite terms

d<0

Infinite terms

None of these

There are ______ types of rational fraction

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Three

Four

Five

Two

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Hermitian matrix

Skew-hermitian matrix

Symmetric matrix

Identity matrix

If a=5j + 2j,b=2i -3j, then|a+2b|=

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√21

√97

√39

None of these

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The law of consines

The law of sines

The law of tangents

None of these

Every real number is

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A complex number

A rational number

A natural number

A prime number

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2

4

6

8

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