Solving Partial Fractions with Integration

Thread starter nameVoid
Start date Oct 11, 2009
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Fractions Partial Partial fractions

Oct 11, 2009

nameVoid

<br /> \int \frac{x^2+3x+1}{x^4+5x^2+4}<br />
<br /> (Ax+B)(x^2+1)+(Cx+D)(x^2+4)<br />
letting x=0 ..B+4D=1 not sure of the next move

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Oct 11, 2009

tiny-tim

Science Advisor

Homework Helper

Hi nameVoid!

nameVoid said:

letting x=0 ..B+4D=1 …

That's fine.

Now equate the coefficients of x, and then the coefficients of x², and then the coefficients of x³.

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