### Home > CALC > Chapter 7 > Lesson 7.3.3 > Problem 7-135

7-135.

What trig derivative do you recognize?

Refer to the hint in part (a).

Also, remember that 4*x*² = (2*x*)²

This integral is very much like that in part (c).

7-135.

What trig derivative do you recognize?

Refer to the hint in part (a).

Also, remember that 4*x*² = (2*x*)²

This integral is very much like that in part (c).