i'm not really sure how to do this questions b/c of the notations :S if som1 could instruct me on understanding and getting started that would be great, thx

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- Nov 18th 2012, 01:31 PMsimba412Need help with quesiton - derivative and riemann's sum
i'm not really sure how to do this questions b/c of the notations :S if som1 could instruct me on understanding and getting started that would be great, thx

- Nov 18th 2012, 01:42 PMPlatoRe: Need help with quesiton - derivative and riemann's sum

Is the question to find the derivative of $\displaystyle \int_x^{2x } {\left( {3t^2 - 9} \right)dt} $ with respect to $\displaystyle x~?$

If so, suppose that each of $\displaystyle f~\&~g$ is a differentiable function and $\displaystyle y = \int_{g(x)}^{f(x)} {h(t)dt} $ then $\displaystyle y' = f'(x)h(f(x)) - g'(x)h(g(x))$ - Nov 18th 2012, 01:50 PMsimba412Re: Need help with quesiton - derivative and riemann's sum
the upper limit is 2x. yes i think its (3t^2 -9)dt... although it is written as 3t^2 - 9 dt (exactly as in the posted pic)....

- Nov 18th 2012, 02:28 PMPlatoRe: Need help with quesiton - derivative and riemann's sum
- Nov 18th 2012, 02:29 PMsimba412Re: Need help with quesiton - derivative and riemann's sum
yes i got that. thanks for the reply. thats mostly why i got confused, i feel there should be brackets around the fn't ...