Question

How do you convert the polar coordinate `(7,(2pi)/3)` into rectangular coordinates?

Answer 1

`(-3.5,6.06)`

Explanation:

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

Hence,

`x=7 cos ((2pi)/3)=-3.5`

`y=7 sin ((2pi)/3)~~6.06`

So the point is approximately `(-3.5,6.06)`