Question # 1

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

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1

n

n!

none

2 cos α cos ß =

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sin (α + ß) - sin (α - ß)

cos (α + ß) - cos (α - ß)

cos (α + ß) + cos (α - ß)

sin (α + ß) + sin (α - ß)

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Reflexive property

Symmetricproperty

Transitiveproperty

Trichotomyproperty

A key ring is an example of:

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permutation

circulation permutation

combination

none

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

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5

15

51

10

cos (2sin^-1 x) =

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1- 2x²

1 + 2x²

2x²- 1

x²- 1

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set builder notation

tabular form

descriptive method

non-set builder method

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The next term of the sequence 1, 6, 20, 56, ........ is:

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112

144

212

none

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tan x

cot x

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real numbers

complexnumbers

primenumbers

oddnumbers

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10π

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°

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

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10

15

20

none of these

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If S is a sample space and event E is S then P(E) is:

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0

1

>1

none

A dice is thrown. The probability to get an even number is:

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1

none of these

If a matrix A is symmetric as well as skew symmetric, then:

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A is null matrix

A is unit matrix

A is triangular matrix

A is diagonal matrix

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

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