MCQ
The transpose of a row matrix is:
- Azero matrix
- Bdiagonal matrix
- ✓column matrix
- Drow matrix
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$A_1=\left\{(x, y): x^2+2 y^2 \leq 1\right\}$
$A_2=\left\{(x, y):\left|x^3\right|+2 \sqrt{2} \mid y^3 \leq 1\right\}$
$A_3=\{(x, y): \max (|x|, \sqrt{2}|y|) \leq 1\}$ Then,