Rectangular and polar forms are two forms of equations that translates to plot. In this case, the two forms are convertible to each other by the expressions:
r sin theta = y r cos theta = x x2 + y2 = r2
we are given the polar expression r csc theta = 8 and is asked to convert to rectangular form.
in this case, csc theta is equal to 1/ sin theta. thys r / sin theta = 8
in order to make use of the equations above, then
we multiply r to both numerator and denominator in the left side, that is r^2 / r sin theta = 8 x2+y2 / y = 8 x 2 + y2 = 8y
