if A and B are acute in right angled triangle ABC, then find sin^2A+sin^2B
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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
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