Menu Close

Hello-find-finde-0-ln-x-x-2-ax-b-dx-conditions-a-2-lt-4b-in-therm-of-x-1-x-2-root-of-X-2-aX-b-hint-Residus-theorem-applied-too-log-2-z-z-2-az-b-this-is-very-usufull-




Question Number 72430 by mind is power last updated on 28/Oct/19
Hello find  finde  ∫_0 ^(+∞) ((ln(x))/(x^2 +ax+b))dx  conditions a^2 <4b     in therm of x_1 ,x_2   root of X^2 +aX+b    hint Residus theorem applied too ((log^2 (z))/(z^2 +az+b))  this is very usufull i find it in lecture yesterday  because we can easly evaluat any kinde of ∫_0 ^(+∞) ((log^k (z))/(p(z)))dz  withe p(z) eiwthout  root in ]0,+∞[ deg(p(z))≥2
Hellofindfinde0+ln(x)x2+ax+bdxconditionsa2<4binthermofx1,x2rootofX2+aX+bhintResidustheoremappliedtoolog2(z)z2+az+bthisisveryusufullifinditinlectureyesterdaybecausewecaneaslyevaluatanykindeof0+logk(z)p(z)dzwithep(z)eiwthoutrootin]0,+[deg(p(z))2

Leave a Reply

Your email address will not be published. Required fields are marked *