Question # 1

Number of terms in the expansion of (a+b)ⁿ is:

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n

n+1

n-1

none of these

tan^-1 (-x) =

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tan^-1x

cot^-1x

-tan^-1x

-cot^-1x

sec (2π + Θ), where Θ is a basic angle will have terminal side in:

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quad. I

quad. II

quad. III

quad. IV

If the Discriminant of a quadratic equation is a perfect square, then roots are:

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real and equal

complex

rational

irrational

No. of signals made by 5 flags of different colors using 3 flags at a time is:

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60

15

10

None

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rationalnumber

irrationalnumber

naturalnumber

wholenumber

The direction of an angle Θ is determined by its:

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value

magnitude

ratio

sign

For what value of k, the roots of the equation x² + √k x + 2 = 0 are equal:

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1

8

2

4

With usual notations for triangle R equals:

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A key ring is an example of:

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permutation

circulation permutation

combination

none

The reciprocal of the terms of A.P. form:

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A.P

G.P

H.P

none of these

A reference angle Θ is always:

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1

0

2

3

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T₆

T₇

T₈

T₅

2 sin 12° sin 46° =

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cos 34° + cos 58°

sin 34° - sin 58°

sin 34° + sin 58°

cos 34° - cos 58°

Conjugate of -3 -2 i is:

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3 + 2i

-3 + 2i

2 + 3i

-2 + 3i

The disjunction of two statements p and q is denoted by:

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3×2

2×3

2×2

3×3

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1

-1

-6

6

No. of selection of n different things out of n is:

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1

n

n!

none

No. of necklaces can be made from 7 beads of different colors ?

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360

120

60

70

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