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Q3E
Expert-verifiedWrite out the form of the partial fraction decomposition of the function (as in Example 6). Do not determine the numerical values of the coefficients.
(a)\(\frac{{{x^4} + 1}}{{{x^3} + 4{x^3}}}\)
\(\frac{A}{x} + \frac{B}{{{x^2}}} + \frac{C}{{{x^3}}} + \frac{{Dx + E}}{{{x^2} + 4}}\) is the final answer.
\(\frac{{{x^4} + 1}}{{{x^3} + 4{x^3}}}\)
\( = \frac{{{x^4} + 1}}{{{x^3}\left( {{x^2} + 4} \right)}}\)
\(\frac{{{x^4} + 1}}{{{x^3}\left( {{x^2} + 4} \right)}} = \frac{A}{x} + \frac{B}{{{x^2}}} + \frac{C}{{{x^3}}} + \frac{{Dx + E}}{{{x^2} + 4}}\)
Hence, \(\frac{A}{x} + \frac{B}{{{x^2}}} + \frac{C}{{{x^3}}} + \frac{{Dx + E}}{{{x^2} + 4}}\) is the final answer.
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