Question

Given that sin(a)=k, and that 90 11 years ago

Answer 1

you can find the adjacent side by using Pythagorean theorem

Answer 2

omg thanks, so cos(a)=sqrt(1-k^2) and tan(a)=(k(sqrt(1-k^2)))/(1-k^2)?

Answer 3

well I would be careful with signs
k^2+adj^2=1^2
adj=plus or minus sqrt(1-k^2)
but since the adj is an x value and it is to the left of 0 then
we choose adj=-sqrt(1-k^2)

Answer 4

Oh yeah oops, forgot about that. Thanks so much though!!

Answer 5

np