Question # 1

The set of negative integers is closed with respect to:

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addition

multiplication

both (a) and (b)

subtraction

If 2s = a + b + c, then in any triangle ABC:

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all of these

The domain of principal tangent function is:

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0

i

-i

1

The ordered pairs (4, 5) and (5, 4) are:

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same

different

both a and b

N

One card is drawn at random from a pack of 52 cards. The probability that the card drawn a king is:

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none of these

Sum of all three cube roots of unity is:

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1

-1

0

3

Range of the function y = tan^-1 x is:

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A dice is rolled, the probability of getting a number which is even or greater than 4 is:

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none of these

If a_n-3 = 2n - 5 then a_n =

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2n-1

2n+1

2n+3

none

When two sides and included angle is given, then area of triangle is given by:

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all of these

Given tan Θ = 1

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Θ lies in quadrants 1 and 4

cos Θ = √2

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A and B are power sets

A and B are disjoint sets

A and B are super sets

A and B are equal sets

The sum of 10 A.Ms between 3 and 47 is:

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50

250

100

500

π, e are:

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integers

natural numbers

rationalnumbers

irrationalnumbers

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10π

Conjugate of a- i b is:

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b + ia

-a + ib

-a - ib

a + ib

If the sum of the roots of ax² - (a + 1) x + (2a + 1) = 0 is 2, then the product of the roots is:

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1

2

3

4

The additive inverse of a matrix A is:

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A

A^-1

- A

A²

Probability of an impossible event is:

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0

1

-1

∞

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x = 0, y = 0

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