I need help integrating teh following functioN: (x^3)(e^(x^2)
Follow Math Help Forum on Facebook and Google+
Originally Posted by messianic I need help integrating teh following functioN: (x^3)(e^(x^2) Apply the substitution $\displaystyle u=x^2$ to get $\displaystyle \tfrac{1}{2}\int ue^u\,du$. Then apply integration by parts. Can you take it from here?
well it is x^3 so the u in the integral should be u^3/2 right? This complicates things. Can you explain further
Originally Posted by messianic well it is x^3 so the u in the integral should be u^3/2 right? This complicates things. Can you explain further Wrong. Have you been taught how to do a 'u-substitution' when integrating?
yes but a while ago. can you please explain it?
Originally Posted by messianic yes but a while ago. can you please explain it? First go back to your class notes or textbook and review the technique. Note that Google will also give many websites that review the technique.
View Tag Cloud