Question

Is there an error in this chain rule problem?

Answer 1

It seems to me that they should not have changed the ^-1/2 to positive. I mean, it is just the chain/quotient rule.

Answer 2

^-1/2 itself is the mistake.

\(\dfrac x{\sqrt{x^2+1}}=\dfrac x{(x^2+1)^{1/2}}\)

Answer 3

THANK you! It was bothering me big time.

Answer 4

Makes me feel like I actually understand if I spot an error in the solutions manual!

Answer 5

sorry I am lagging, and you are welcome.

Answer 6

This site is slow!