Question

prove that

cos 7A - cos 8A /1+2cos5A = cos2A- cos3A


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Answer 1

Answer:

I WAS ALSO HAVING THE SAME PROBLEM,,,,,I ASKED MY TEACHER....THE ANSWER WILL BE COS 1956....I WILL SEND YOU THE PICTURE IF YOU MARK ME AS BRAINLIEST,,,,,AND YES THE ANSWER IS PERFECTLY CORRECT BECAUSE IT WAS DONE BY MY EXPERTISE TEACHER..OK...SO MARK MY  AS THE BRAINLIEST,I WILL SHARE YOU HE TOTAL SOLUTION...OK..HOPE YOU WILL MARK...

Answer 2

this is the answer

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