If A and B are acute in right angled ABC, then sin2 A + sin2 B =

Asked by preetisonips22 | 4th Jan, 2020, 05:44: PM

Expert Answer:

In triangle ABC,
A and B are acute angles hence C is right angle.
A + B = 90
B = 90 - A
Sin2 A + sin2 B
= sin2 A + sin2 (90 - A) 
= sin2 A + cos2 A
= 1

Answered by Sneha shidid | 5th Jan, 2020, 01:35: AM