Math, asked by venkatesh9573, 11 months ago

cos36cos54-sin36sin54 how to solve this problem

Answers

Answered by ananthukrishnan456

0

Step-by-step explanation:

cos (A+B) = cosA cos B - sinA sin B

cos36 cos 54 - sin36 sin 54 = cos (36+54)

= cos(90)

cos 90 degree = 0

cos 90 radians = 0.44807361612

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