1. The problem statement, all variables and given/known data A circle has the parametric equations: x=1+2cos[tex]\theta[/tex] y=3+2sin[tex]\theta[/tex] dy/dx= -1/tan[tex]\theta[/tex] Find the tangent equation at the point with parameter [tex]\theta[/tex] 2. Relevant equations y-y1=m(x-x1) 3. The attempt at a solution I've tried putting dy/dx in as the gradient and then x1 and y1 as the parametric equations but i seem to come up with some really long equation that im sure isnt right. Any help at all would be greatly appreciated. Many thanks.