What is the equation of the normal line of #f(x)= cotx# at #x = pi/8#?
1 Answer
Jan 10, 2018
Explanation:
To find the normal line, first find the slope of the tangent line of
This can be found by finding the derivative of
the slope of the normal like is the opposite reciprocal of that, which would be:
the point the normal line passes through is
use point-slope form: