The number of non-empty subsets of the set $\{1, 2, 3, 4\}$ is
$15$
$14$
$16$
$17$
Write down all the subsets of the following sets
$\emptyset $
Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?
$\{ \{ 3,4\} \} \subset A$
Make correct statements by filling in the symbols $\subset$ or $ \not\subset $ in the blank spaces:
$\{ x:x$ is a triangle in a plane $\} \ldots \{ x:x$ is a rectangle in the plane $\} $
Write the following sets in the set-builder form :
$\{ 1,4,9 \ldots 100\} $
In the following state whether $\mathrm{A = B}$ or not :
$A = \{ 2,4,6,8,10\} ;B = \{ x:x$ is positiveeven integer and $x\, \le \,10\} $