[填空题]
Consider the function fe4/ alda21bgpyq 4dj) (x)=ln (2 x-1) . Let pft7 yvs6j,k i.oint A be the point on the curve where tk6sy7ij,fv. x=3 .
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=
