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2nd way: integral β«e^(x/2)/(1+e^x) dx
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Lamar U 2nd way: evaluate trig log sq rt integral β«sin(1+ln(2x))-β(1+ln(2x))/x dx
NYU: 2nd way compute log integral β«1/x ln(x) dx
Lamar U 2nd way: evaluate trig integral β«csc(x/2) cot(x/2)(csc^6(x/2)+3csc^4(x/2)-8csc(x/2)) dx