Let $S=\{1,2,3,4\}$. The total number of unordered pairs of disjoint subsets of $S$ is equal to
Let $S=\{1,2,3,4\}$. The total number of unordered pairs of disjoint subsets of $S$ is equal to
- [IIT 2010]
- A
$25$
- B
$34$
- C
$42$
- D
$41$
Similar Questions
Which of the following are sets ? Justify your answer.
A team of eleven best-cricket batsmen of the world.
Which of the following are sets ? Justify your answer.
A team of eleven best-cricket batsmen of the world.
Write the following as intervals :
$\{ x:x \in R, - 4\, < \,x\, \le \,6\} $
Write the following as intervals :
$\{ x:x \in R, - 4\, < \,x\, \le \,6\} $
Write the following sets in roster form :
$\mathrm{E} =$ The set of all letters in the world $\mathrm{TRIGONOMETRY}$
Write the following sets in roster form :
$\mathrm{E} =$ The set of all letters in the world $\mathrm{TRIGONOMETRY}$
Write down all the subsets of the following sets
$\{ a,b\} $
Write down all the subsets of the following sets
$\{ a,b\} $
In rule method the null set is represented by
In rule method the null set is represented by