Math, asked by enoshkumarpal, 5 months ago

Prove the following:Express 4 cos A. cos B cos C as the sum of four cosines.​

Answers

Answered by sonuchauhan8810
2

Answer:

helo guys its your answer

Step-by-step explanation:

Expressing Products as Sums for Cosine ... Express the following product as a sum containing only sine or cosine and no products : sin(4θ)cos(2θ) sin ... Example 6: Proving an Identity.

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