Question

What is the Cartesian form of `(81,(17pi)/12)`?

Answer 1

(-20.96 , -78.24 )

Explanation:

Using the formulae that links Polar to Cartesian coordinates.

`• x = rcostheta`

`• y = rsintheta`

here r = 81 and `theta = (17pi)/12`

`rArr x = 81cos((17pi)/12) = - 20.96`

and `y = 81sin((17pi)/12) = - 78.24`