Answers

✨ Best Answer ✨

-sinθ+cosθ
=‪√‬2{(-1/‪√‬2)sinθ+(1/‪√‬2)cosθ}
=‪√‬2{cos(3π/4)sinθ+sin(3π/4)cosθ}
=‪√‬2sin(θ+3π/4)

です。

Post A Comment

Answers

Were you able to resolve your confusion?