Question

If sinA=cosB then prove that A+B=90°

Answer 1

Answer:

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

          Sin A = sin(90 - B)

           A = 90 - B

           A + B = 90.

Answer 2

Step-by-step explanation:

sinA=cosB

cos(90-A)=cosB

90-A=B

so,

A+B=90°