Question

If sin θ = cos θ, find the value of θ. ​

Answer 1

For θ=45°,sinθ&cosθ

⇒sinθ=cosθ

⇒sinθ=cos(90°−θ)

⇒θ=90°−θ

⇒2θ=90°

⇒θ=45°

Hence, the answer is 45°.

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Answer 2

sin θ = cos θ

sin θ/cos θ = 1

tan θ = 1

tan 45° = tan θ

θ = 45°