Question

Find the rectangular coordinates of the point with the polar coordinates (-3, 5pi/3)

Answer 1

you have r and \(\theta\), just apply x = r cos \(\theta\) and y = r sin\(\theta\)
why is it hard?

Answer 2

i tried that but it kept giving me (-2.9875, -0.2738) for an answer but the choices that i have are in fractions.

Answer 3

so, convert it into fraction, that's it. use calculator.

Answer 4

my calculator said that x = -3/2, you calculate y

Answer 5

and you can "cheat" by look at the choices, which has x = -3/2 , no matter what y is, pick it, hehehe..