Q. 2 A4.8( 4 Votes )

Simplify

cos 38° cos 52° – sin 38° sin 52°

Answer :


cos 38° cos 52° – sin 38° sin 52°

cos 38° sin (90–52)° – sin 38° cos (90–52)°


cos 38° sin 38° – sin 38° cos 38°


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