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BITSAT2015MathematicsLimitsActual

_ x ₀^ 2 x x e^ x² d x e^ 4 x² equals

Options

  1. A0
  2. B2
  3. C1 2

Correct answer

3

Step-by-step solution

Consider _ x ₀^ 2 x x e^ x² d x e^ 4 x² array l = _ x 2 ₀^ 2 x x e^ x² d x 2 e^ 4 x² = _ x 2 ₀^ 2 x e^ x² d (x² ) 2 e^ 4 x² = _ x [e^ x² ]₀^ 2 x e^ 4 x² = _ x e^ 4 x² -1 2 e^ 4 x² = _ x ( 1 2 - 1 2 e^ 4 x² )= 1 2 array

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