Question

How do you convert the polar coordinate `(3,-(3pi)/7)` into rectangular coordinates?

Answer 1

`(0.67,-2.92)`

Explanation:

To convert from polar coordinate to rectangular coordinate we use the formula `x=rcos theta, y=rsin theta`

Hence,

`x=3cos (-(3pi)/7)~~0.67`

`y=3 sin (-(3pi)/7)~~-2.92`

So the point is approximately `(0.67,-2.92)`