Question # 1

Complex roots of real quadratic equation always occur in:

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conjugate pair

ordered pair

reciprocal pair

none of these

If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ?

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W

{0}

none of these

An infinite sequence has no:

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nth term

last term

sum

none

The range of principal tangent function is:

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With usual notations for triangle R equals:

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B - A is a subset of:

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A

B

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irrational fraction

polynomial

rational fraction

none of these

Inverse sine function is written as:

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(sin x)^-1

sin x^-1

arc sinx

arc sin^-1 x

The range of principal cosine function is:

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tan^-1 (-x) =

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tan^-1x

cot^-1x

-tan^-1x

-cot^-1x

If, for all x in the domain of f, there exists a smallest positive number p such that f (x+p) = f(x), then p is the:

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period of f

period of 2f

period of 3 f

period of 4 f

There is a solution of the equation 2 sin Θ + 1 = 0 in the quadrants:

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1 and 2

1 and 3

2 and 4

3 and 4

The graph of x = sin y is obtained by reflecting the graph of y = sin x about the line:

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x axis

y axis

y = x

y = -x

If n(S) = 3 then n {P(S)} =

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2

8

16

4

In how many ways two places can be filled by n objects:

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n(n-1)

2!

n(n+1)

None

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

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2

-2

-3

none of these

If AB = BA = I, then A and B are:

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equal to each other

multiplicative inverse of each other

additive inverse of each other

both singular

The domain of principal sine function is:

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(1 - sin²Θ) (1 + tan²Θ) =

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0

1

Θ

-1

Which trigonometric equation has secondary solution ?

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sin Θ = 1

cos Θ = 1

sec Θ = 0

tan Θ = 1

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