Math, asked by pkalita3, 10 months ago

cos63 cos27-sin63 sin27

Answers

Answered by harishpathrabe2

2

Answer:

cos63cos(90-27)-sin63sin(90-27)

cos63sin63-sin63cos63

cos63×cos63-sin63×sin63

=1×1

=1

Answered by janhavi38

5

cos 63 cos 27 - sin 63 sin 27

sin 27 cos 27 - cos 27 sin 27

=0..

concept applied is ,sin A = cos (90 - A)..

Hope it will help u...

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