For the function gxlnex over the domain 01 where e is the ir

For the function g(x)=ln(ex) over the domain (0,1]. (where e is the irrational number e = 2.7182 .... not e^x ) evaluate the improper integral (lim of 0 to 1 ) of g(x) dx, showing all working

Solution

ln(ex) = 1 + lnx
=> lnx dx can be found out usin fg dx = gfdx - g\' fdx dx

Here f is 1 and g is ln x => lnx dx = x lnx - x => x (ln x -1) + c

Now 1 + ln x dx = x + xlnx - x + c=> xlnx + c is the answer

For the function g(x)=ln(ex) over the domain (0,1]. (where e is the irrational number e = 2.7182 .... not e^x ) evaluate the improper integral (lim of 0 to 1 )

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