Question # 1

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

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a

b

bi

none of these

180° = _____________:

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π radians

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No. of diagonals can be formed by joining the vertices of the polygon having 5 sides ?

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5

15

51

10

A function whose domain is the set of natural numbers is called the:

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series

sequence

means

convergent

sin5Θ + sin3Θ is equal to:

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2cos 2Θ sin Θ

-2 cos 4Θ sin Θ

-2 sin 4Θ cos Θ

2 sin 4Θ cos Θ

5x² + 8x + 3 = 0 is:

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Period of a trigonometric function is:

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any real number

any negative real number

any integer

a least positive number

If α, ß, Γ are the angles of a oblique triangle, then:

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α = 90°

ß = 90°

Γ = 90°

none of these

The trivial solution of the homogeneous linear equations is:

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(1, 0, 0)

(0, 1, 0)

(0, 0, 1)

(0, 0, 0)

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To draw general conclusions from well-known facts is called:

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logic

proposition

induction

deduction

The multiplicative identity of real numbers is:

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0

1

2

-1

What is the next term in the sequence 10, 7, 4, 1...........?

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2

-2

-3

none of these

The period of tan x is:

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If A is a matrix of order m × n, then the number of elements in each row of A is:

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m

n

m + n

m - n

Amplitude of sin x is:

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R

[-1,1]

0

1

No. of arrangements of the letters of the word plane taking all letters at a time:

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5

1

none

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