i ও ii
i ও iii
ii ও iii
i, ii ও iii
$\{-7\}$
$\{0\}$
$\{\sqrt{7}\}$
$\{0,\sqrt{7}\}$
{1}
$\{\phi\}$
{}
{2}
$\{0\}$
$\{\}$
$\{\frac{3}{2}\}$
$\{1\}$
$\{\frac{1}{2}\}$
$\{2\}$
$\phi$
$\{ \frac{7}{4} \}$
$\{\phi\}$
{1}
{}
{2}