Math, asked by PAPUBEHERA, 2 months ago

sin (30+A)+sin(30-A)

Answers

Answered by Anonymous

1

Explanation :-

using the formula (sin C - sin D)=2cosC+D/ 2sinC-D/2

2cos (30+A+30-A) sin(30+A-30+A)

2cos 60 sin 2A

(2x1/2) Sin 2A

1xsin 2A = sin 2A

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