Question

find the angle theta in the following, if 0° < theta < 90°......cos theta = sin theta

Answer 1

Answer:

sinθ.cos(90°−θ)+cosθsin(90°−θ)

=sinθ.sinθ+cosθcosθ

=sin

2

θ+cos

2

θ

=1

Step-by-step explanation:

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