1. The problem statement, all variables and given/known data Find dy/dx and determine the exact x coordinate of the stationary point for: (a) y=(4x^2+1)^5 (b) y=x^2/lnx 2. Relevant equations 3. The attempt at a solution (a) y=(4x^2+1)^5 dy/dx=40x(4x^2+1)^4 40x(4x^2+1)^4=0 Find x... How? (b) y=x^2/lnx dy/dx=2xlnx-x^2 1/x / (lnx)^2 2xlnx-x^2 1/x / (lnx)^2=0 Find x... How?