Normally I don’t ask for help but I’m very lost on question 4. I know I need to first find the derivative of f(x) but I’m not sure how to go about it. Any help would be greatly appreciated

Step-by-step explanation:

Trigonometric Derivatives

We have the function

We must recall that the sine and the cosecant are reciprocal functions, i.e.:

Also, the reciprocal of the tangent is the cotangent:

Thus:

Now it's easier to take the derivative

Evaluating for x=π/4:

Since csc π/4=:

x-3y=4

step-by-step e

never fear papaguy is here

answer