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CUET · MATHS · PYQ PAPER 2023

\[\int e^x\left(1+x^2\right) d x=\]

  1. A \(e^x\left(\frac{x^3}{3}+x\right)+C \quad(C\) is a constant)
  2. B \(\left(x^2+2 x\right) e^x+C \quad(C\) is a constant \()\)
  3. C \(\left(x^2-2 x+3\right) e^x+C \quad(C\) is a constant \()\)
  4. D \(2 x e^x+C\) ( \(C\) is a constant)
Verified Solution

Answer & Solution

Correct Answer

(C) \(\left(x^2-2 x+3\right) e^x+C \quad(C\) is a constant \()\)

Step-by-step Solution

Detailed explanation

\(\int e^x P(x) dx = e^x(P(x) - P'(x) + P''(x) - \dots) + C\) \(= e^x((1+x^2) - (2x) + (2)) + C\) \(= e^x(x^2 - 2x + 3) + C\)
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