Question

$\int\limits^a_b { \frac{1}{x(x^3+1)} } \, dx$ eu am incercat scriind $x^3+1=x^3+1^3=(x+1)(x^2-x+1)$, dar am ajuns tot la forma integralei initiale calculand( $\frac{A}{X}+ \frac{B}{X+1}+ \frac{CX+D}{X^2-X+1}$)

Answer 1

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