Question # 1

(n + 2) (n + 1)n in factorial form is

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I f a =5i + 2j, then|a| =

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√13

√7

1/√13

√29

If (0, 0) and (1, 0) are the end points of a diameter, then the equation of the circle is

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∫x sin xdx is equal to:

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sin x/x + cos x

sin x - cos x/x

x cos x + sin x

- x cos x + sin x

The number of triplets (x, y, z) satisfying sin^-1x +cos^-1y + sin^-1z = 2π is

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0

2

1

Infinite

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0

-1

1/2

1

Given two numbers a and b. Let A denote the single A.M. between these and S denote the sum of n A.M.'s between them. Then S/A depends upon

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n, a, b

n, a

n, b

n

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x =0, y =4

x = -1, y = 2

x = 2, y = 3

x = 3, y = 4

In R, the additive inverse of a is

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0

1

-a

1/a

Range of cosθis

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