1.

Evaluate:\(\int\frac{sec^2(log\,x)}{x}dx\)∫sec2(logx)/x dx

Answer»

Let log x = t

1/xdx = dt

∫sec2tdt = tan t + c

\(\int\frac{sec^2(log\,x)}{x}dx\) = tan (logx) + c



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