onegirl
Use the given substitution to evaluate the indicated integral.



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onegirl
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onegirl
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@terenzreignz can u help?

tanjung
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u = x^3 + 2
du = 3x^2 dx
1/3 du = x^2 dx
see that integral becomes
1/3 int(u)^1/2 du

terenzreignz
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Nuff said, @tanjung :)

onegirl
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thanks!

tanjung
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can u finish it, onegirl ?

onegirl
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no

tanjung
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to get the integral of u^1/2 du
use the basic formula :
int u^n du = 1/(n+1) u^(n+1)

onegirl
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okay

onegirl
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i got 2u^3/2 over 3 is that correct?