Write the following as intervals :
$\{ x:x \in R, - 12\, < \,x\, < \, - 10\} $
$\{ x:x \in R, – 12\, < \,x\, < \, – 10\} = \left( { – 12, – 10} \right)$
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:
$A, \ldots B$
What universal set $(s)$ would you propose for each of the following :
The set of right triangles
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\} $
Which of the following are sets ? Justify your answer.
The collection of all boys in your class.
Which of the following sets are finite or infinite.
The set of positive integers greater than $100$
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