Question # 1

If 4^x = 2, then x equals:

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2

1

The imaginary part of the complex number a + bi is:

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a

b

bi

none of these

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40

-40

26

-26

Conjugate of complex number (-a, -b) is:

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(-a, b)

(-a, -b)

(a, -b)

none of these

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degree of P(x) = degree of Q(x)

degree of P(x) < degree of Q(x)

degree of P(x) > degree of Q(x)

none of these

cos^-1 (-x) =

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π + cos^-1 x

π - cos^-1x

π + sin^-1x

π - sin^-1x

To draw general conclusions from a limited number of observations is called:

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logic

proposition

induction

deduction

No. of triangles can be formed by joining the vertices of the polygon having 12 sides ?

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202

220

110

none of these

The period of cot x is:

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A set having no element is called:

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null set

subset

singleton

superset

Distinct objects means:

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identical objects

not identical

similar

none of these

The period of 2 + cos 3x is:

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If 2s = a + b + c, where a, b, c are the sides of a triangle ABC, then area of triangle ABC is given by:

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integer

rational number

irrational number

natural number

The period of cos 2x is:

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If (x - 2, 2) = (3, 2), then:

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x = 5

x = 2

x = -5

x = 3

If A = [a_ij], B = [b_ij] and AB = 0 then:

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A = 0

B = 0

either A = 0 or B = 0

A & B not necessarily zero

The domain of principal cosine function is:

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Two matrices X and Y are equal if and only if:

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X and Y are of same order

Their corresponding elements are equal

Both a and b

None of these

Reference angles is always in:

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IQ

IIQ

IIIQ

IVQ

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