# What is the slope of the line normal to the tangent line of #f(x) = cosx-cos^2x +1 # at # x= (17pi)/12 #?

##### 1 Answer

Slope of the normal to the tangent line

#### Explanation:

From the given equation

Obtain the first derivative

Slope

Using trigonometric formulas like half-angle formulas and sum/difference formulas

Now, we have to solve for the slope of the normal line

God bless.....I hope the explanation is useful.