Question

Heyyy can someone help me with 9D AND 10A pleasE? I would really appreciate it! Please walk me through it! :)

Answer 1

Do you still need 10 a?

Answer 2

this helps me, I don't know if you already have one or not

Answer 3

why does sin pie = 0?

Answer 4

Look at the second attachment

Answer 5

(x,y) (cos,sin)

Answer 6

@ pi the (x,y) is (-1,0) cos is -1 and sin is 0

Answer 7

ohhh! okayy! so if it said pie over 3 it would be sqrt(3)/2
?

Answer 8

depending on whether it was sin or cos

Answer 9

for pi over 3 the cos is 1/2 and the sin is\[\sqrt{3}/2\]

Answer 10

okayy cool thanks! :)

Answer 11

No problem hope the attachment helps you, it makes it a lot easier to visualize (:

Answer 12

yes, it did! :)