Theformulaforintegrationbyparts (1)udvuvvdu Letu=f(x)andv=g(x)arebothdifferentiable,thendu=f’(x)dxanddv=g’(x)dx (2)f(x)g(x)dxf(x)g(x)f(x)g(x)dx Example1.Findxcosxdx Example2.Evaluatelnxdx Example3.Find x2exdx Example4....
and}vduismoreconveniencetocalculatethantheorigina1integration. LiateRuleisaruleofthumbproposedbyHerbertKasubeofBradleyUniversity advisesthatwhich— eVer unctioncomesfirstinthefollowinglistshouldbe () . “L’’meansLogarithmicfunctionsas1n-z 。 etc. meansmVersetrigonometricfunctionsasaretanx,etc ‘‘ . a,,...