Need help! Integral of (X^5) sqrt (x^3)+1 dx I hope this isint too hard to read but its only the sqrt of x^3+1 Thanks!
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try substituting
Originally Posted by badgerigar try substituting I tried that, even split x^5 to (x^2)(x^3) but my answer is way off from the books. btw the answer is 2/15((x^3)+1)^5/2 - 2/9((x^3)+1)^3/2+c
Originally Posted by xclo0sive I tried that, even split x^5 to (x^2)(x^3) but my answer is way off from the books. btw the answer is 2/15((x^3)+1)^5/2 - 2/9((x^3)+1)^3/2+c Going along with that u-sub, you get Thus, you now get But So then you should end up with Can you fill in the ??
Originally Posted by Chris L T521 Going along with that u-sub, you get Thus, you now get But So then you should end up with Can you fill in the ?? my final answer was 1/12 (x 2/3((x^3)+1)^3/2+c but its nowhere close to the answer provided.
The book's answer is correct. I dunno what you are doing wrong though.
Originally Posted by xclo0sive my final answer was 1/12 (x 2/3((x^3)+1)^3/2+c but its nowhere close to the answer provided. Originally Posted by Chris L T521 Going along with that u-sub, you get Thus, you now get But So then you should end up with Can you fill in the ?? Since , it implies that Thus, Can you take it from here?
Originally Posted by Chris L T521 Going along with that u-sub, you get Thus, you now get But So then you should end up with Can you fill in the ?? So . Can you do this integral?
Originally Posted by Prove It So . Can you do this integral? Oh WOW THanks guys! I completely forgot to substitute the x^3! Thanks!! EDIT: How did you get u^ 3/2
How did you get u^ 3/2
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