Find the integral of ((x^2)/(x^2+7x+12)) with respect to x
Shubham Nikam , 9 Years ago
Grade 12
Integral Calculus> Find the integral of ((x^2)/(x^2+7x+12)) ...
1 Answersvenkateshwarrao
x^2/(x+3)(x+4)=1+A/(x+3)+B/(x+4) and then L.c.m, and cancel LCM on both sides the remaining is. x^2=1+A(x+4)+B(x+3)....…...(1)put x=-3 on both sides we getA=9,put x=-4 getB=-16Therefore integral ofx^2/(x+3)(x+4)=x+9 log(x+3)-16log(x+4)
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