How do you find the definite integral of #3x^2 sqrt(x^3+1)dx# from #[-1, 1]#?
1 Answer
Jun 24, 2016
Explanation:
there's a very nice pattern here - notice the red and green
so a good trial solution is
testing that:
personally think that's better than going trough the motions of a substitution...
so we have: