Find the linear equations that can be used to convert an (x, y) equation to a (x, v) equation using the given angle of rotation θ.

\(θ=70^∘\)

find the exact value of \(\tan(\frac{4\pi}{3}-\frac{\pi}{4})\)

\(θ=\frac{π}{3}\)

Prove that \(\displaystyle{\left({1}+ \cos{\theta}\right)}{\left({1}- \cos{\theta}\right)}={{\sin}^{2}\theta}\)