Question

Convert 4(cos(240) + isin(240)) into rectangular form. ??

Answer 1

cos (240)=?

Answer 2

-.5?

Answer 3

yup, sin 240 =?

Answer 4

-root3/2

Answer 5

ok, so, just distribute 4 into it, you have 4cos 240 = x coordinate
4 sin 240 = y coordinate
Dat sit

Answer 6

I'm confused

Answer 7

why? 4*(-0.5) = -2, that is x in rectangular form

Answer 8

hey, your problem is CONVERT to rectangular form, Please, don't MIX the problems up

Answer 9

All your options are polar forms

Answer 10

Still super lost haha

Answer 11

When you have CONVERT TO RECTANGULAR form, you are given a POLAR form, that is there is cos and sin in the form, and you convert to (x,y) form

Answer 12

oh oops I gave the wrong answer choices

Answer 13

hehehe... I think so

Answer 14

we had it before hahaha my bad

Answer 15

so it's C?

Answer 16

yup, I gave you x =-2, already, now you have 4 sin (240) =?

Answer 17

hihihi... only one option has x =-2, you are lucky, save a bunch of time.