I'm having a little trouble with this homework problem.
If tan(a) = -3/2 and sin(a) > 0, find the following:
sin(a)
cos(a)
sec(a)
csc(a)
cot(a)
I've already gotten that cot(a) = -2/3 but I have no idea how to do any of the others.
Hello,
First of all, translate the information you're given :
Since -3/2 < 0 and sin(a) > 0, we have that cos(a) < 0.
Next step, use the most common formula :
(it could have been + sqrt, but since it is negative...)
So substitute this formula of cos(a) into tan(a) and get sin(a) !
Then get cos(a) etc..