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If A + B + C = 180^(@), prove that sin...

If A + B + C = `180^(@)`, prove that
sin A + sin B + sin C = 4 cos `(A)/(2) cos"" (B)/(2) cos"" (C )/(2)`

Text Solution

Verified by Experts

The correct Answer is:
`4 cos ""(A)/(2) cos ""(B)/(2) cos"" (C )/(2) `
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