Convert the rectangular equation $5x-4y=3$5x−4y=3 into a polar equation.
Convert the polar equation $r=6\sin\theta$r=6sinθ into a rectangular equation.
Convert the polar equation $r=2\cos\theta$r=2cosθ into a rectangular equation.
Convert the polar equation $r=\frac{10}{1-\cos\theta}$r=101−cosθ into a rectangular equation.