Question

If A and B sin A = cos B then A + B = ?​

Answer 1

We know sinA=cos(90−A)

Given, sinA=cosB

cosB=cos(90−A)

⇒B=90−A

⇒A+B=90

Step-by-step explanation:

Answer 2

Answer:

Given, Sin A = Cos B, it can be written as

Sin A = sin(90 - B)

A = 90 - B

A + B = 90