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KVPY2016MathematicsLimits

Limit _ x x² ₀^ x e^ t³-x³ dt equals

Options

  1. A1 3
  2. B2
  3. C2 3

Correct answer

A. 1 3

Step-by-step solution

_ x x² ₀^ x e^ x³ d t e^ x³ Apply L Hospital array l _ x 2 x ₀^ x e^ t³ +x² e^ x³ 3 x² e^ x³ _ x 2 ₀^ x e^ t³ +x e^ x³ 3 x e^ x³ _ x 2 e^ x³ +e^ x³ +3 x³ e^ x³ 3 e^ x³ +9 x³ e^ x³ _ x 3+3 x³ 3+9 x³ = 1 3 array

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