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\frac{x^{4}}{x^{3} + 1}

এর আংশিক ভগ্নাংশ কোনটি?

x + \frac{1}{x + 1} + \frac{5}{x^{2} - 2 x + 1}

x + \frac{1}{3 (x + 1)} - \frac{5}{3 (x^{2} - 2 x + 1)}

\frac{1}{2 x + 5} + \frac{3}{x^{2} + 11}

x + \frac{5}{x + 1} + \frac{9 x}{x^{2} + 3 x + 5}

\frac{11}{2 x + 1} + \frac{9 x}{x^{2} + 5}

ANS : 2

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