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GUJCET · Maths · Application of Derivatives

નીચે આપેલા અંતરાલો પૈકી કયા અંતરાલમાં \(y=x^2 \cdot e^{-x}\) ઘટતું વિધેય છે?

  1. A \((-2, 0)\)
  2. B \((-\infty, \infty)\)
  3. C \((2, \infty)\)
  4. D \((0, 2)\)
Verified Solution

Answer & Solution

Correct Answer

(C) \((2, \infty)\)

Step-by-step Solution

Detailed explanation

\(y' = 2x \cdot e^{-x} + x^2 \cdot (-e^{-x})\) \(y' = xe^{-x}(2 - x)\)
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