Question

find the second derivative of sqroot(x^2+1)

Answer 1

Answer will be 2

Answer 2

i found the first derivative is x/ sqroot(x^2+1)

Answer 3

2 is not in my answer choices

Answer 4

derive it again, what would get, you could use the quotient rule

Answer 5

when i derived it again i got

Answer 6

sorry. I missed squareroot :P

Answer 7

@Sandsand22 you r right

Answer 8

when i derived it again i got

Answer 9

(x^2+1)^(-1/2) + x(x^2+1) / (x^2+1)

Answer 10

idk exactly how to cancel it out

Answer 11

you don't need to cancel it out if you don't want to, but this is wolfram's answer

Answer 12

i couldn't show you the work since the Draw, Equation button isn't responding

Answer 13

hmm okay thank you i get it

Answer 14

No problem