need calculus help
y=2x find antiderivative using riemann sum
yes i kno its just y = x^2 + c but i need help doing the work..... this is what i got so far below

- Goten77

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- Goten77

|dw:1355372909640:dw|

- Goten77

i got more

- anonymous

ok that's good what you're doing.

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## More answers

- Goten77

|dw:1355372991600:dw|
forgot to mention a = 0 since its at the middle point and B is some point thats greater then 0

- Goten77

then i got this but im sure somethings wrong

- Goten77

|dw:1355373081568:dw|

- anonymous

Whoa,aren't you the one who posed this question Goten77?

- Goten77

am i doing this right so far?

- anonymous

I mean posted this?

- Goten77

ye i posted

- Goten77

so is what i did right so far?

- abb0t

What is n? I think that is usually given. But if not, then yes. You're on the right path

- Goten77

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- Goten77

hmm if thats right then i get to this part
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- Goten77

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- Goten77

heres where i get lost

- abb0t

You're "n" should cancel out when you take the limit, you get an actual value.

- Goten77

hmm something like this u mean?

- Goten77

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- Goten77

must b a really long reply XD

- abb0t

Oh sorry, haha. Yeah. like that. The N's should cancel :)

- anonymous

I wrote a reply but the LaTeX rendering script failed as usual.

- Goten77

<.<

- Goten77

hmm maybe this
|dw:1355375769697:dw|

- Goten77

well the right side = 1 but then im left with the anti derivative of y = x and not y = 2x

- Goten77

<.< should a 2 b on the top from like the start or somethign?

- abb0t

Well, yeah. Lol. It should. You should have got that from your b-a tho, I believe.

- Goten77

oh i think i get it now

- Goten77

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- Goten77

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- Goten77

hmm this problem took me way to long

- abb0t

Yeah, reimann sum problems are long. introduction methods to easy methods are always long.
just like the definition of the derivative. it' could take a long time.

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