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AmTran_Bus
 one year ago
Integration help
AmTran_Bus
 one year ago
Integration help

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AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440354731938:dw

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1The integral of x is just (x^2)/2, right?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2well +c but we don't care about +c really with definite integrals

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1So I havedw:1440354893717:dw

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1or b^2/2  a^2/2 (1/ba)?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1right, but nobody leaves it like that.. it can be simplified...

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1dw:1440355025079:dw can you help with the bottom?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{1}{2} \frac{b^2a^2}{ba}\] hint difference of squares

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1Oh ok. Not too bad then. Can more be done? The book says b+a / 2

freckles
 one year ago
Best ResponseYou've already chosen the best response.2and you can't do anything else unless you want to write it as b/2+a/2

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1can you show me how you get from 1/2 (b^2a^2 / 2(ba) to that?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2do you know the difference of squares formula...

freckles
 one year ago
Best ResponseYou've already chosen the best response.2so maybe not.. b^2a^2=(ba)(b+a)

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1Ok thanks that was the missing piece for me I guess.

freckles
 one year ago
Best ResponseYou've already chosen the best response.2hmmm how did you get that extra 2 ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{1}{ba} \int\limits_a^b x dx \\ \frac{1}{ba} \cdot \frac{x^2}{2}_a^b \\ \frac{1}{ba}(\frac{b^2}{2}\frac{a^2}{2} ) \\ \frac{1}{ba} (\frac{b^2a^2}{2}) \\ \frac{1}{2} \frac{b^2a^2}{ba} \\ \frac{1}{2} \frac{(ba)(b+a)}{ba}\] you should just have one 2 on bottom not two 2's

freckles
 one year ago
Best ResponseYou've already chosen the best response.2"can you show me how you get from 1/2 (b^2a^2 / 2(ba) to that?" or was the extra 2 just a typeo?

AmTran_Bus
 one year ago
Best ResponseYou've already chosen the best response.1Oh me! Yes, I accidentally put in an extra 2 on the bottom, forgetting the 1/2!
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