Question

if cos(theta) = -1, what does theta equal?

Answer 1

any odd multiple of pi

Answer 2

thank you!

Answer 3

this is for calc 3, but i seem to forget simple trig

Answer 4

trig is alot of memory

Answer 5

u solving for theta?

Answer 6

yea, thats trig, but how do you get that?
im doing trig and we havn't learned this yet so it might help me out

Answer 7

trig are circle functions; and the unit circle goes around every 2pi

Answer 8

so place the unit circle on the xy plane and use y=sin and cos=x for your guide

Answer 9

thats confusing, i;ll jsut wait til i learn it in class

Answer 10

if you could, the question is to find the area of the region that lies inside the cardiod r=1+cos(theta) and the outside of the circle r=1