Q. 504.1( 10 Votes )

If sin θ + cos θ

Answer :

Given that, sin θ + cos θ = 1


Squaring both sides, we get


(sin θ + cos θ)2 = 1


sin2θ + cos2θ + 2sin θ cos θ = 1


1 + sin2θ = 1


sin2θ = 1-1


= 0

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