Integral of [sqrt(t)*ln t]dt from 1 to 4.

I tried to do substitution but I think I am doing it wrong

u = ln t

du/dt = 1/t

tdu = dt

the square root in the original problem is confusing me. can someone help?

thanks

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- Sep 3rd 2007, 09:23 AMxfyzdefinite integrations
Integral of [sqrt(t)*ln t]dt from 1 to 4.

I tried to do substitution but I think I am doing it wrong

u = ln t

du/dt = 1/t

tdu = dt

the square root in the original problem is confusing me. can someone help?

thanks - Sep 3rd 2007, 09:32 AMKrizalid
Did you try, integration by parts?

- Sep 3rd 2007, 09:50 AMxfyz