What is the equation of the normal line of #f(x)=x^3-x^2+8x-9# at #x=-1#?
1 Answer
Sep 1, 2016
Explanation:
rArr f(-1)=-1-1-8-9=-19#.
Therefore, we require the eqn. of normal to the curve
We have,
But, we know that,
Normal is
Hence, eqn. of normal is
Enjoy Maths.!