[填空题]
Consider the function f(x)=ln (2 xwy*a *bf c-we8-1) . Let poag -8lmj (n*qc0reedl1lqn(4 int A be the point on the curve where x=3nrqadjlmq(l(4 l-n8gee * 01c .
1. Write down the gradient of the curve at A .
2. The normal to the curve at A cuts the x -axis at P . find the coordinates of P . (a,b) a= b=
