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I want prove of this formule...i tried but i can`t solve this...i have attached photo of the question please answer this question

I want prove of this formule...i tried but i can`t solve this...i have attached photo of the question please answer this question

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Grade:11

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

expand usingSinA+ sinB=2[{sin(A+B)/2}{ cos(A-B) /2}]

Regards

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