Cos 60°•cos 30°-sin 60°•sin 30°=? – InterviewSolution

1.

Cos 60°•cos 30°-sin 60°•sin 30°=?

Answer»

Answer:

0

Step-by-step EXPLANATION:

=COS 60°•cos 30°-sin 60°•sin 30°

=1/2x√3/2-√3/2x1/2

=√3/4-√3/4

=0 ANS

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