Question # 1

The domain of principal sine function is:

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Solution set of the simultaneous equations : x + y = 1, x - y = 1 is:

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{(0,0)}

{(1,0)}

{(0,1)}

{(1,1)}

n! stands for:

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product of first natural numbers

sum of n natural numbers

product of n integers

none of these

The period of sec 2x is:

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No. of arrangements of the letters of the word PAKISTAN can be made, taken all together ?

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21160

20160

20170

20016

No. of arrangements of the letters of the word PAKPATTAN can be made, taken all together ?

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15130

15120

1512

none of these

The middle term of (x-y)¹⁸ is:

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9th

10th

11th

none of these

2 cos α sin ß =

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cos (α + ß) + cos (α - ß)

sin (α + ß) + sin (α - ß)

sin (α + ß) - sin (α - ß)

cos (α + ß) + cos (α - ß)

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3×1

1×3

3×3

1×1

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If n is a positive integer, then the binomial co-efficient equidistant form the beginning and the end in the expansion of (x+a)ⁿ are:

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same

not same

additive inverse of each other

none of these

The range of principal cosine function is:

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Inverse of an element in a group is:

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infinite

finite

unique

not possible

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ?

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none of these

The identity element in a group is:

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unique

inifinite

both a and b

not possible

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

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set builder notation

tabular form

descriptive method

non-set builder method

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0

-1

>1

none

-2 sin α sin ß =

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sin (α + ß) + sin (α - ß)

cos (α + ß) + cos (α - ß)

cos (α + ß) - cos (α - ß)

cos (α - ß) + cos (α - ß)

A circle drawn inside a triangle and touching its sides is known as:

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