trig
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 345 rightangled 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