Posted by alexis on Thursday, October 30, 2008 at 10:58pm.
Suppose a curve is traced by the parametric equations
x=1sin(t)
y=183cos^2(t)4sin(t)
At what point (x,y) on this curve is the tangent line horizontal?

calc  drwls, Thursday, October 30, 2008 at 11:06pm
When dy/dx = (dy/dt)/(dx/dt) = 0
Do the calculation and first find the value of t. Use that co calculate x and y