1.

Find sin""(x)/(2),cos""(x)/(2)andtan""(x)/(2) in each of the following. sinx=(1)/(4),x in quadrant II.

Answer»


ANSWER :`(SQRT ( 8 + 2 sqrt15))/(4) , (sqrt ( 8- 2 sqrt15))/(4), 4 + sqrt15`


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