(%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?