Math, asked by Anonymous, 5 months ago

please answer fast..........

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Answered by Sandrasanoop12

0

Answer:

Sin $\frac{x}{2}$ = - { $\frac{\sqrt{8+2\sqrt{15} } }{4}$ }

Cos $\frac{x}{2}$ = - { $\frac{\sqrt{8-2\sqrt{15} } }{4}$ }

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