Question

How do you convert `3y= 2x-2` into a polar equation?

Answer 1

`2rcostheta-3rsintheta-2=0.`

Explanation:

To convert a cartesian eqn. into a polar one, the following formulas are used ; `x=rcostheta, y=rsintheta.`

Using these, given eqn. becomes, `3rsintheta=2rcostheta-2,` or, `2rcostheta-3rsintheta-2=0.`