Question

Find the derivatives and give the interval for which the results are valid.

Answer 1

\[\frac{ d }{ dx }(\ln(2x ^{2}+1))\]

Answer 2

@jim_thompson5910 please help, im at it again

Answer 3

use the chain rule and the rule that if

y = ln(x)

then

dy/dx = 1/x

Answer 4

4x/2x^2+1?

Answer 5

good

Answer 6

so the interval will be (-1,infinity)?

Answer 7

assuming you meant to write \[\Large \frac{4x}{2x^2+1}\]

Answer 8

yes

Answer 9

this is valid for all real numbers, so the interval is (-infinity, infinity)