Question

If sin A = cos B. then A + B =

Answer 1

Answer:

it's very simple,

here is it.

Step-by-step explanation:

sinA= cosB

sinA= sin(90°− B)

A= 90°− B

A+ B= 90°

Answer 2

Answer:

sinA-cosB=0

A=B=45

A+B=90