Question

Choose the point on the terminal side of -210°.

Answer 1

I am so lost, can someone please help me

Answer 2

I guess we are to assume r is 1

Answer 3

\[x=r \cos(\theta) \\ y=r \sin(\theta)\]

Answer 4

1cos
1sin

Answer 5

or maybe r is suppose to be 2

Answer 6

I don't know r is not given

Answer 7

but the answers seems to suggest r=2

Answer 8

which answer do you suggest i put?

Answer 9

enter in the r and enter the theta
then you can find x and y

Answer 10

it is weird though they don't tell you what r is

Answer 11

ugh this is so confusing

Answer 12

I gave you the equations

Answer 13

\[x =r \cos(\theta) \\ y=r \sin(\theta) \\ r=2 \\ \theta=-210^o \\ \text{ you want \to find } (x,y)\]

Answer 14

just replace r with 2 and replace theta with -210

Answer 15

okay so:
x=2cos(-210)
y=2sin(-210)

Answer 16

yes

Answer 17

i got that^

Answer 18

you can use unit circle to get exact answer

Answer 19

ok