#How does the integration of lnsinx work
12 messages · Page 1 of 1 (latest)
If you want to integrate between 0 and pi/2, you can u sub to get the integral of ln cos instead, then add both to get ln((sin 2x) /2) . Finally, split the ln and notice that ln(sin) is symmetrical along x=pi/2
substitute x as sin-1 t
Without the limits is a lot harder right?
i think impossible mabye
likely non elementary ig
with limits, we can work out with kings rule or smth
ln sinx has no antiderivative that uses elementary functions
your best bet is to just do a reimann sum with very small intervals
or have a calculator do it for you
Right, thanks