I'm very unsure on how to do this equation...(adsbygoogle = window.adsbygoogle || []).push({});

Someone PLEASE HELP!!!

[tex]\int[/tex]x[tex]^{3}[/tex][tex]\sqrt{}x^{2}+9[/tex]

i do know that

if you...

let x = 3sec [tex]\vartheta[/tex]

dx = 3 sec [tex]\vartheta[/tex] tan [tex]\vartheta[/tex] du

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# Calculus II Trig Sub

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