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Question Number 179741 by mnjuly1970 last updated on 01/Nov/22
       prove  that        ∫_0 ^( ∞ ) (( (√x))/(1 +7x^( 2)  + x^( 4) )) dx = (π/( (√( 90))))
$$ \\ $$$$\:\:\:\:\:{prove}\:\:{that} \\ $$$$ \\ $$$$\:\:\:\:\int_{\mathrm{0}} ^{\:\infty\:} \frac{\:\sqrt{{x}}}{\mathrm{1}\:+\mathrm{7}{x}^{\:\mathrm{2}} \:+\:{x}^{\:\mathrm{4}} }\:{dx}\:=\:\frac{\pi}{\:\sqrt{\:\mathrm{90}}}\:\: \\ $$$$ \\ $$

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