Q. 3 A3.7( 3 Votes )

# If two angles and are complementary angle, let us show thatsin2α + sin2β = 1

Given, two angles are complementary = 90°

sin2α + sin2β

sin2α + sin2(90 - α)

sin2α + cos2α

= 1

[sin2θ + cos2θ = 1]

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