Zabia H.

asked • 06/30/21

What is the relation between y=sinx and y=cosx ? Explain it in 3-5 sentences..

Philip P.

Cosine is short for complementary sine. The two non-right angles in a right triangle are complementary, meaning they sum to 90 degrees. The cosine of one of the angles is equal to the sine of the other and vice versa.


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