Math, asked by Ruparam5673, 11 months ago

Prove that cos2x cosx/2-cos3x cos9x/2=sin5x sin5x/2

Answers

Answered by anmol1819
1

Answer:

I don't know this answer to your questions

Answered by nithishghomathi
0

Answer:

kkkkk

Step-by-step explanation:

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