∠A and ∠B are complementary angles of right triangle ABC, cos A = 0.83, and cos B = 0.55. What is sin A sin B?

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Answer 1

Answer: Complementary angles are two angles which add up to 90° or forms a right angle. First, we find the value of A and B.

A = arccosine (0.83) = 34°
B = 90 - 34 = 56°

Thus, sin A = 0.56 and sin B = 0.83.

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