Question

My question is in the image below. I will medal good explanations. Thank you!

Answer 1

Use the idea that

x = r*cos(theta)
y = r*sin(theta)

Answer 2

In this case, you're given

r = -5
theta = pi/4

Answer 3

make sure your calculator is in radian mode

Answer 4

Thank you I will try this! :)

Answer 5

You're welcome. Tell me what you get.

Answer 6

I got ( -5√2)/2 for both x and y. Is that correct?

Answer 7

it is

Answer 8

Thank you! :)

Answer 9

np