### Home > CALC > Chapter 5 > Lesson 5.5.2 > Problem 5-169

5-169.

Don't forget the + *C*.

Think of this as *f*(*x*) = 2(*x* + 3)^{–3}.

What common trig function has a derivative of *y* = sec²*x*?

Before you find *F*(*x*), rewrite *f*(*x*) with a negative exponent.