Q.

The value of Question Image is equal to

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Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

  Question Image

b

  Question Image

c

  Question Image

d

  Question Image

answer is B.

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Detailed Solution

            Question ImageQuestion ImageQuestion Image        [Question Image]
Question Image        Question ImageQuestion ImageQuestion Image        [Question Image]
On multiplying the numerator and denominator by 2
Question ImageQuestion Image            [sin2θ = 2sinθ.cosθ]
Hence,
Question Image      
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