Math, asked by Anonymous, 6 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}}

Step-by-step explanation:

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