Question

if sinA=cosB then prove that A+B=90​

Answer 1

Answer:

value of A+B=90°

Explanation:

Given A and B are acute angles.

and

SinA = CosB

=> Sin A = Sin(90-B)

=> A = 90°-B

=> A+B = 90°

Therefore,

Value of (A+B) = 90°

••••

Answer 2

Answer:

sin A = cos B

cos ( 90 - A ) = cos B

90 - A = B

90 = A + B

A + B = 90

hope it helps u