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Simplify sin(2x+7y)+sin(2x-7y)

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Simplify sin(2x+7y)+sin(2x-7y)

asked May 3, 2018 109k views

2 votes

Simplify sin(2x+7y)+sin(2x-7y)

Mathematics
college

Febian Shah asked

8.3k points

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1 Answer

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sin(a+b)=sin a * cos b + sin b cos a
sin(a-b)=sin a * cos b - sin b cos a

Myles Eftos answered May 8, 2018

7.6k points

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