What are polar coordinates, and how can we use them to solve STEP and other advanced mathematics examinations problems?
What on earth are polar coordinates, and why would you want to use them?
Sketch the graph of $xy(x^2 - y^2) = x^2 + y^2$ consisting of four curves and a single point at the origin. Convert to polar form. Describe the symmetries of the graph.
This polar equation is a quadratic. Plot the graph given by each factor to draw the flower.