Question

1 14. If A and B are acute angles and sin A = cos B, then the value of A + B is (
a) 60°
(b) 180°
(c) 90°
(d) 120° .​

Answer 1

Answer:90

Step-by-step explanation:

If sina = cosa it means sum of these will90 so, sina +cosb=90 so a+b=90