# the normal to the curve xe^-y e^y=1 x, at the point (c,lnc) has a y-intercept c^2 1. What'

*label*Mathematics

*timer*Asked: Feb 25th, 2015

**Question description**

the normal to the curve xe^-y+e^y=1+x, at the point (c,lnc) has a y-intercept c^2+1. What's the value of c?