posted by Ryan .
Given that sin theta= 3/5 and the terminal side is in quadrant II, find tan (pi/2 - theta)
make a triangle and you should reconize the 3-4-5 right-angled triangle.
but we know tan(π/2 - Ø) = cotØ , coterminal ratios
since Ø is in II , tan Ø = -3/4
cotØ = 1/tanØ = -4/3