Math, asked by vishal9579, 6 hours ago

If a + b + c = 11 prove that cos square A / 2 + cos square b / 2 + cos square c /2 equal to 2 (1 + sin a/ 2 + sin b/ 2 + sin C/ 2

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Answered by gvrpatrudu

0

95 is the answer thankyou

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