Math, asked by asleychan9fn, 1 year ago

prove that cosq cosq/2-cos3Qcos9Q/2=sin7Qsin4Q

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Answered by Khushwantbhatt

0

Cant understand your question please type properly or clip a pic of question

asleychan9fn: How can I add photo

asleychan9fn: You can't answer this question because I was just 15 years old this is class 11th question so...

asleychan9fn: *you are

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