Question # 1

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0

Independent of a

Independent of b

Independent of c

Which one is not defined∀n∈Z+

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-n!

n!

(-n)!

n!+0!=n!+1

A key ring is an example of

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Permutation

Circular permutation

Combination

None

Range of sin x is ______

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[-1, 1]

R

Negative real numbers

None of these

If 0 = {1,3,5.......}, then n (0) =

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99

odd integers

Even numbers

Infinite

If a=5j + 2j,b=2i -3j, then|a+2b|=

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√21

√97

√39

None of these

Coordinates of the focus of the parabola x² - 4x -8y-4=0 are:

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(0,2)

(,0,1)

(2,0)

(1,2)

Sec 30° = ______

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30°

45°

60°

90°

n!/(n-1)!=

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n

n!

(n-1)!

0!

The distance between the points A(-8,3) and B(2,-1) is

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116

none of these

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