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1) Let then: . Thus,
Originally Posted by liyi Evaluate Hehe, I've got another solution for this one. You can also set and apply Frullani from there.
Originally Posted by liyi . Let and we get: . Thus the integral becomes,
Another attempt. Originally Posted by liyi Evaluate Define One more substitution according to
Originally Posted by liyi Evaluate Rewrite the integral as Now here's the trick, make the substitution
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