Question # 1

In R, the multiplicative identity is

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0

1

-1

None

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2x cos x2

2sinxcosx

- sin x2

2x sin x2

Associative law of multiplication

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ab = ba

a(bc) = (ab) c

a(b+c) = ab + ac

(a + b)c = ac + bc

A vector of magnitude zero is called

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Position vector

Null vector

Free vector

None of these

If C is the mid point of AB and P is any point outside AB, then

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E-radius corresponding to < A is

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real number

complex number

rational number

irrational number

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9/4

4/9

1

None of these

If a,b c are sides of a triangle taken in order then a x b =

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b x c

b x a

cxa

Both a & b

The set of rational number is represented by

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W

R

Q'

Q

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