Not quite. You made a mistake on line 2, then another one on line 3. Recalculate the derivative of . Then
Ok, let's look at his again:
- This answer is still wrong on computer homework. (Speechless)
What is the derivative of ? It is not . Even if it were, .
I figured out the right answer. The derivative of or So you just put that in there, and you get the right answer.