Asked by Howl

Prove the trigonometric identity below. Show all steps algebraically
(𝑥sinθ − 𝑦cosθ)^2 + (𝑥cosθ + 𝑦sinθ)^2 = 𝑥^2 + 𝑦^2
Answered by Anonymous
not again
scroll through related problems
Answered by Howl
Sorry for reposting this problem but I couldn't understand the process from the previous post. However, i do get it now, thanks anyways