What is the length of the curve f(x)=ln(x)f(x) = \ln(x)f(x)=ln(x) from x=1x=1x=1 to x=ex=ex=e?
∫1e1+1/x2dx\int_1^e \sqrt{1 + 1/x^2} dx∫1e1+1/x2dx
∫1e1+ln2xdx\int_1^e \sqrt{1 + \ln^2 x} dx∫1e1+ln2xdx
∫1e(1+1/x)dx\int_1^e (1 + 1/x) dx∫1e(1+1/x)dx
∫1e1+1/xdx\int_1^e \sqrt{1 + 1/x} dx∫1e1+1/xdx