Question
फलन ${\left( {\frac{1}{x}} \right)^x}$ का उच्चिष्ठ मान है
==> $f'(x) = {\left( {\frac{1}{x}} \right)^x}\left( {\log \frac{1}{x} - 1} \right)$
$f'(x) = 0 \Rightarrow \log \frac{1}{x} = 1 = \log e $
$\Rightarrow \frac{1}{x} = e \Rightarrow x = \frac{1}{e}$
अत: फलन का उच्चिष्ठ मान ${e^{1/e}}$ है।
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$A_1=\left\{(x, y): x \geq 0, y \geq 0,2 x+2 y-x^2-y^2>1>x+y\right\}$
$A_2=\left\{(x, y): x \geq 0, y \geq 0, x+y>1>x^2+y^2\right\}$
$A_3=\left\{(x, y): x \geq 0, y \geq 0, x+y>1>x^3+y^3\right\}$
$A_1, A_2$, एवं $A_3$ के क्षेत्रफल क्रमशः $\left|A_1\right|,\left|A_2\right|$, एवं $\left|A_3\right|$ है, तब