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Grade 11Trigonometry

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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mayank kumar

8 Years agoGrade 11

1 Answer

Saurabh Koranglekar

6 Years ago

Dear student

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

Regards

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