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Today at 11:03 AM
Mathematics

Answered

The expression cos 4xcos 3x +sin 4r sin 3x is
equivalent to

Answer :

surjithayer10 surjithayer10

Today at 11:07 AM

Answer:

Step-by-step explanation:

cos 4x cos 3x+ sin 4x sin 3x=cos(4x-3x)=cos x

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