MCQ
Area enclosed by the circle $x^2+y^2=a^2$ is equal to:
- A$2\pi\text{a}^2\text{sq.}\text{ units}$
- ✓$\pi\text{a}^2\text{sq.}\text{ units}$
- C$2\pi\text{a}\text{ sq.}\text{ units}$
- D$\pi\text{a}\text{ sq.}\text{ units}$
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$a_{i j}= 1 , \quad\quad\text { if } i=j$
$\quad\quad-x ,\quad \text { if }|i-j|=1$
$\quad\quad2 x+1, \text { otherwise }$
Let a function f: $\mathrm{R} \rightarrow \mathrm{R}$ be defined as $\mathrm{f}(\mathrm{x})=\operatorname{det}(\mathrm{A})$. Then the sum of maximum and minimum values of $f$ on $R$ is equal to: