1. Integral of (x(ln(x))/(square root of (x^2)-1) dx 2. Integral of cos^2(1+ln(x))/x dx 3. Evaluate the following sum: (SERIES QUESTION) n=1 to infinity (3^(n+2))/(2^(2n-1))
Last edited by mr fantastic; December 15th 2010 at 08:46 PM. Reason: Deleted begging etc. from title.
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Originally Posted by devil10078 1. Integral of (x(ln(x))/(square root of (x^2)-1) dx 2. Integral of cos^2(1+ln(x))/x dx 3. Evaluate the following sum: (SERIES QUESTION) n=1 to infinity (3^(n+2))/(2^(2n-1)) #3. . . So . Therefore, Can you take it from there?
Originally Posted by devil10078 ] 2. Integral of cos^2(1+ln(x))/x dx Let . What does the integral become?
substitute ... integrate then back sub ...
Hello, devil10078! I pray that these are not on your exam . . . Integrate by parts: . . The new integral reguires Trig Substitution: . . Good Luck!
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