How do you integrate ln(x) from 1 to 3 with respect to y? Please show work and explain!
M mopar969 New member Joined Mar 22, 2010 Messages 1 Mar 22, 2010 #1 How do you integrate ln(x) from 1 to 3 with respect to y? Please show work and explain!
A Aladdin Full Member Joined Mar 27, 2009 Messages 553 Mar 22, 2010 #2 ------------------------------------ \(\displaystyle Integrate \ \int\(lnxdx)\) Integral by part : Let U = lnx Let dv=dx . . . .
------------------------------------ \(\displaystyle Integrate \ \int\(lnxdx)\) Integral by part : Let U = lnx Let dv=dx . . . .
D daon Senior Member Joined Jan 27, 2006 Messages 1,284 Mar 22, 2010 #3 If no relation are given between x and y, \(\displaystyle \int_1^3 \ln x dy = \ln x \int_1^3 dy = 2 \ln x\)
If no relation are given between x and y, \(\displaystyle \int_1^3 \ln x dy = \ln x \int_1^3 dy = 2 \ln x\)