Which of the following are sets ? Justify your answer.
The collection of all boys in your class.
Which of the following are sets ? Justify your answer.
The collection of all boys in your class.
The collection of all boys in your class is a well-defined collection because you can definitely identify a boy who belongs to this collection.
Hence, this collection is a set.
Similar Questions
State which of the following sets are finite or infinite :
$\{ x:x \in N$ and ${x^2} = 4\} $
State which of the following sets are finite or infinite :
$\{ x:x \in N$ and ${x^2} = 4\} $
Let $A, B,$ and $C$ be the sets such that $A \cup B=A \cup C$ and $A \cap B=A \cap C$. Show that $B = C$
Let $A, B,$ and $C$ be the sets such that $A \cup B=A \cup C$ and $A \cap B=A \cap C$. Show that $B = C$
Which of the following sets are finite or infinite.
$\{1,2,3, \ldots 99,100\}$
Which of the following sets are finite or infinite.
$\{1,2,3, \ldots 99,100\}$
Write the following as intervals :
$\{ x:x \in R,0\, \le \,x\, < \,7\} $
Write the following as intervals :
$\{ x:x \in R,0\, \le \,x\, < \,7\} $
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$ 2 \, ....... \, A $
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$ 2 \, ....... \, A $