Question

please refer to the attachment and answer. don't answer if u don't know. I will choose brainliest ☺️​

Answer 1

Answer:

ANSWER

For θ=45°,sinθ&cosθ

⇒sinθ=cosθ

⇒sinθ=cos(90°−θ)

⇒θ=90°−θ

⇒2θ=90°

⇒θ=45°