What is the equation of the line normal to # f(x)=lnx^2-1/x^2# at # x=-2#?
1 Answer
Feb 12, 2017
The normal line to this function at the given point has equation
Explanation:
First note that
Second,
Since the normal line has slope equal to the negative reciprocal of the tangent line (since they are perpendicular), the normal line has slope
Putting all this together gives the equation of the normal line to be