Find the trig point of (π/3 - θ), if P(θ) = (r,s).

Answer 1

r=hyp*cosθ, hyp=radius

s=hyp*sinθ

r'=hyp*cos(-θ+π/3)=r/2+(s√3)/2

s'=hyp*sin(-θ+π/3)=-s/2+(r√3)/2