Question
Let $\text{A}=\{\phi,\{\phi\},1\{1,\phi\},2\}.$ Then the statement is true?
$\{\phi\}\in \text{A}.$
$\{\phi\}\in \text{A}.$
Explanation:
$\because\oint$ is an element of A.Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.