1.

Evaluate cos30degree×cos60degree+sin30degree×sin60degree​

Answer»

ANSWER:

√3/4 + √3/4

Step-by-step EXPLANATION:

cos30degreexcos60degree+sin30degreexsin60degree = √3/2 X 1/2 + 1/2 x √3/2

=√3/4 + √3/4



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