Examine whether the following statements are true or false :
$\{ a\} \in \{ a,b,c\} $
False. The element of $\{a, b, c\}$ are $a, b,$ c. Therefore, $\{a\} \subset\{a, b, c\}$
Consider the sets
$\phi, A=\{1,3\}, B=\{1,5,9\}, C=\{1,3,5,7,9\}$
Insert the symbol $\subset$ or $ \not\subset $ between each of the following pair of sets:
$\phi \,….\,B$
Write the solution set of the equation ${x^2} + x – 2 = 0$ in roster form.
Write the following sets in roster form :
$A = \{ x:x$ is an integer and $ – 3 < x < 7\} $
The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals
