MCQ
${x^4}{e^{ - {x^2}}}$ ની મહત્તમ કિમત મેળવો.
- A$e^2$
- B$e^{-2}$
- C$12e^{-2}$
- ✓$4e^{-2}$
$2 x^{3} e^{-x^{2}}\left(2-x^{2}\right)$
Sign scheme of $f^{\prime}(x)$ is as follows:
Hence, $f(x)$ is maximum at $x=\pm \sqrt{2}.$
Thus, maximum value $=4 \mathrm{e}^{-2}.$
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