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Evaluate: ∫ X 3 − X 2 + X − 1 X − 1 D X - Mathematics

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Question

Evaluate: \[\int\frac{x^3 - x^2 + x - 1}{x - 1} \text{ dx }\]

Sum
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Solution

\[\int\left( \frac{x^3 - x^2 + x - 1}{x - 1} \right) dx\]
\[ = \int\left( \frac{x^2 \left( x - 1 \right) + 1\left( x - 1 \right)}{\left( x - 1 \right)} \right)dx\]
\[ = \int\frac{\left( x^2 + 1 \right) \left( x - 1 \right)}{\left( x - 1 \right)}dx\]
\[ = \int\left( x^2 + 1 \right) dx\]
\[ = \frac{x^3}{3} + x + C\]

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Chapter 19: Indefinite Integrals - Very Short Answers [Page 198]

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RD Sharma Mathematics [English] Class 12
Chapter 19 Indefinite Integrals
Very Short Answers | Q 49 | Page 198

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