Question

If cosx=1/3
and x is in quadrant two, answer the following questions

sin(x/2)

tan(x/2)

Answer 1

So first, can you figure out what the angle is?

Answer 2

Hint: start by drawing a picture

Answer 3

what kind of picture, like on the unit circle?

Answer 4

well, in order to use sine or cosine you must have a ______. More specifically, it must be a _____ ________.

Answer 5

triangle? right triangle?

Answer 6

yyuppers

Answer 7

so just to start, draw a triangle in quad 2