Convert sin7a + sin5a as a product . Solve it .. thanks a lot

Question

Vikas TU · Answer

Dear student sin 7α + sin 5α = 2 sin (7α + 5α)/2 cos (7α - 5α)/2, [Since, sin α + sin β = 2 sin (α + β)/2 cos (α - β)/2] = 2 sin 6α cos α Hope this helps Good luck

Sai Soumya · Answer

FORMULA: sin A + sin B = 2.sin(A+B)/2.sin(A-B)/2 Now put the values according to the question you will get it

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Convert sin7a + sin5a as a product . Solve it .. thanks a lot

Convert sin7a + sin5a as a product . Solve it .. thanks a lot

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