$\int_{0}^{+\infty }\frac{ln(x^{2}+4^{x})}{\sqrt{3x^{7}+7x^{^3}}}dx$
Edited by ngominhtu237, 03-11-2012 - 11:49.
Edited by ngominhtu237, 03-11-2012 - 11:49.
$\int_{0}^{+\infty }\frac{ln(x^{2}+4^{x})}{\sqrt{3x^{7}+7x^{^3}}}dx=\int_{1}^{+\infty}\frac{ln(x^{2}+4^{x})}{\sqrt{3x^{7}+7x^{^3}}}dx + \int_{0}^{1}\frac{ln(x^{2}+4^{x})}{\sqrt{3x^{7}+7x^{^3}}}dx$Xét sự hội tụ của tích phân suy rộng:
$\int_{0}^{+\infty }\frac{ln(x^{2}+4^{x})}{\sqrt{3x^{7}+7x^{^3}}}dx$
Edited by Ispectorgadget, 15-11-2012 - 23:21.
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