Question

trig function..eval. w/o calc.

I'm confused because it's ⅔...if it was like -½ instead i'd get why it'd be -pi/6...postin

Answer 1

just need the sin part i get the rest

Answer 2

what you need is the third side of the triangle, which you find via pythagoras as
\[\sqrt{3^2-2^2}=\sqrt{5}\]

Answer 3

ohhh yea! ok got it. I just put one as the other side cuz i remember doing that in class but it was a diff prob. that makes sense. Than you!!

Answer 4

then you can find all the other trig rations you need, just be careful of what the sign is

Answer 5

*ratios

Answer 6

yw