integrate(sin(x)^2/x,x,minf,inf);



(%i1) integrate(sin(x)^2/x,x,minf,inf);
Principal Value
                                     log(- 1)
(%o1)                             - --------
                                        2
(%i2) integrate(sin(x)^2/x,x,10000000000,10000000000);
(%o2)                                  0
(%i3)

Function sin(x)^2/x is odd function, so it seems that 
integrate(sin(x)^2/x,x,minf,inf) must return 0. Am i wrong?