1. The problem statement, all variables and given/known data y=x^(lnx) i know the derivative of lnx is 1/x but what about x^(lnx)? ln(cos-¹x) 2. Relevant equations N/A 3. The attempt at a solution ln(cos-¹x) (1/(cos-¹x))(-x/√(1-x²)) -x/(cos-¹x√(1-x²)) The back in the book has the same answer except the -x is a -1 instead.