Question

If A, B are acute angles such that sin A = cos B , then A + B =
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Answer 1

Answer:

A+B = 90°

Step-by-step explanation:

Given,

If A,B are acute angles,

sinA = cosB

sinA = sin(90°-B)

A = 90°-B

A+B = 90°.

:.A+B = 90°.