List of Integrals of Rational Functions - Integrands of The Form (d + e X)m (A + B X) (a + b X

Integrands of The Form (d + e X)m (A + B X) (a + b X

  • The resulting integrands are of the same form as the original integrand, so these reduction formulas can be repeatedly applied to drive the exponents m and p toward 0.
  • These reduction formulas can be used for integrands having integer and/or fractional exponents.
  • Special cases of these reductions formulas can be used for integrands of the form and by setting m and/or B to 0.

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= \frac{(d+e\,x)^{m+1} (A\,e (m+2 p+2)-B\,d (2 p+1)+e\,B (m+1) x) \left(a+b\,x+c\,x^2\right)^p}{e^2(m+1) (m+2 p+2)}\,+\, \frac{1}{e^2(m+1) (m+2 p+2)}p\,\cdot

 \int (d+e\,x)^{m+1} (B (b\,d+2 a\,e+2 a\,e\,m+2 b\,d\,p)-A\,b\,e (m+2 p+2)+(B (2 c\,d+b\,e+b\,e m+4 c\,d\,p)-2 A\,c\,e (m+2 p+2))x)\left(a+b\,x+c\,x^2\right)^{p-1}dx

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= \frac{(d+e\,x)^m (A\,b-2 a\,B-(b\,B-2 A\,c) x)\left(a+b\,x+c\,x^2\right)^{p+1}}{(p+1)\left(b^2-4 a\,c\right) }\,+\, \frac{1}{(p+1)\left(b^2-4 a\,c\right) }\,\cdot

 \int (d+e\,x)^{m-1}(B (2 a\,e\,m+b\,d (2 p+3))-A (b\,e\,m+2 c\,d (2 p+3))+e(b\,B-2 A\,c) (m+2 p+3) x)\left(a+b\,x+c\,x^2\right)^{p+1}dx

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= \frac{(d+e\,x)^{m+1} (A\,c\,e (m+2 p+2)-B (c\,d+2 c\,d\,p-b\,e\,p)+B\,c\,e(m+2 p+1) x)\left(a+b\,x+c\,x^2\right)^p}{c\,e^2(m+2 p+1) (m+2 p+2)}\,-\, \frac{p}{c\,e^2(m+2 p+1) (m+2 p+2)}\,\cdot

 \int (d+e\,x)^m (A\,c\,e (b\,d-2 a\,e) (m+2 p+2)+B (a\,e (b\,e-2 c\,d\,m+b\,e\,m)+b\,d (b\,e\,p-c\,d-2 c\,d\,p))+

 \left(A\,c\,e (2 c\,d-b\,e) (m+2 p+2)-B \left(-b^2 e^2 (m+p+1)+2 c^2 d^2 (1+2 p)+c\,e (b\,d (m-2 p)+2 a\,e (m+2 p+1))\right)\right) x)\left(a+b\,x+c\,x^2\right)^{p-1}dx

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= \frac{(d+e\,x)^{m+1} \left(A \left(b\,c\,d-b^2 e+2 a\,c\,e\right)-a\,B (2 c\,d-b\,e)+c (A (2 c\,d-b\,e)-B (b\,d-2 a\,e)) x\right)\left(a+b\,x+c\,x^2\right)^{p+1}}{(p+1)\left(b^2-4 a\,c\right) \left(c\,d^2-b\,d\,e+a\,e^2\right)}\,+\,

 \frac{1}{(p+1)\left(b^2-4 a\,c\right) \left(c\,d^2-b\,d\,e+a\,e^2\right)}\,\cdot

 \int (d+e\,x)^m (A \left(b\,c\,d\,e (2 p-m+2)+b^2 e^2 (m+p+2)-2 c^2 d^2 (3+2 p)-2 a\,c\,e^2 (m+2 p+3)\right)-

 B (a\,e (b\,e-2 c\,d m+b\,e\,m)+b\,d (-3 c\,d+b\,e-2 c\,d\,p+b\,e\,p))+c\,e(B (b\,d-2 a\,e)-A (2 c\,d-b\,e)) (m+2 p+4) x)\left(a+b\,x+c\,x^2\right)^{p+1}dx

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= \frac{B(d+e\,x)^m\left(a+b\,x+c\,x^2\right)^{p+1}}{c(m+2 p+2)}\,+\, \frac{1}{c(m+2 p+2)}\,\cdot

 \int (d+e\,x)^{m-1} (m(A\,c\,d-a\,B\,e)-d(b\,B-2 A\,c)(p+1) +((B\,c\,d-b\,B\,e+A\,c\,e) m-e(b\,B-2 A\,c)(p+1))x) \left(a+b\,x+c\,x^2\right)^pdx

\int (d+e\,x)^m (A+B\,x) \left(a+b\,x+c\,x^2\right)^pdx= -\frac{(B\,d-A\,e) (d+e\,x)^{m+1} \left(a+b\,x+c\,x^2\right)^{p+1}}{(m+1)\left(c\,d^2-b\,d\,e+a\,e^2\right)}\,+\, \frac{1}{(m+1)\left(c\,d^2-b\,d\,e+a\,e^2\right)}\,\cdot

 \int (d+e\,x)^{m+1} ((A\,c\,d-A\,b\,e+a\,B\,e) (m+1)+b (B\,d-A\,e) (p+1)+c (B\,d-A\,e) (m+2 p+3) x)\left(a+b\,x+c\,x^2\right)^pdx

Read more about this topic:  List Of Integrals Of Rational Functions

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