Math, asked by keerthanabkvrl4977, 9 months ago

Cos theta . Cos theta + cos theta = 1

Answers

Answered by apexabroadstu

0

Answer:

sinθ+cosθ=1

(sinθ+cosθ)

2

=1

2

sin

2

θ+cos

2

θ+2sinθ.cosθ=1

1+2sinθ.cosθ=1

sinθ.cosθ=0

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