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Mathematics 17 Online
OpenStudy (anonymous):

need help with calculus questions

OpenStudy (vishweshshrimali5):

same here ;)

OpenStudy (lgbasallote):

dont we all

OpenStudy (anonymous):

\[\int\limits_{1}^{2}\left( 8x^3 + 3x^2\right) dx\]

OpenStudy (lgbasallote):

\[\large \int_1^2 8x^3 dx + \int_1^2 3x^2 dx\]

OpenStudy (lgbasallote):

what's your problem with that?

OpenStudy (mimi_x3):

\[\large \int\limits x^{n}dx = \frac{x^{n+1}}{n+1} +C\]

OpenStudy (anonymous):

well now after you do this you do the derivative on both?

OpenStudy (lgbasallote):

integral not derivative....

OpenStudy (anonymous):

oh ok

OpenStudy (lgbasallote):

\[\large 8\int_1^2 x^3dx + 3\int_1^2 x^2dx\]

OpenStudy (lgbasallote):

use the power rule on that...then substiitute your limits

OpenStudy (anonymous):

I got it thanks

OpenStudy (anonymous):

\[\int\limits_{1}^{9}\ \sqrt{u} du\]

OpenStudy (anonymous):

@bboy , what's that? a new problem?

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