Math, asked by Agnideep2003, 10 months ago

Prove that cos alpha + cos 3 alpha + cos 5 alpha + cos 7 alpha + cos 9 alpha = sin 10 alpha / 2 sin alpha

Answers

Answered by sandipkumar08388

2

Answer:

re bshhdhueyeuehsbdbbdbxbxchxbxbxbx_&₹2&2

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