Answer:
An equation whose variables are polar coordinates is called a polar equation.
Step-by-step explanation:
Polar Equation--
A polar equation is a equation that describe the relationship between r and θ, where r is the distance from the pole to a point on a curve and θ is the angle subtended by that point with respect to the x-axis.
Hence, here r,θ acts as a variable of the equation.
So, we can change any rectangular equation in terms of variable x and y into the polar equation in terms of variable r and θ by using the transformation:
x=r cosθ and y=r sinθ.
