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Q.

If , then the value of is.

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a

100

b

108

c

95

d

1008

answer is B.

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Detailed Solution

We know the identity of

………………..(1)
We have given that

Squaring on both side
$Question Image$ [ on using identity (1) ]

Question Image

Also we know that

Put all given value and value of equation (2)
Then,

= 108

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If , then the value of is.