Home  >>  CBSE XI  >>  Math  >>  Sets

Find the union of each of the following pairs of set $A={1,2,3},B=\phi$

$\begin{array}{1 1}(A)\;\{1,2,3,\phi\}&(B)\;\{1,2,3\}\\(C)\;\phi&(D)\;\{1,2,3,\{\phi\}\}\end{array}$

1 Answer

$A\cup B=\{1,2,3\}\cup \phi$
$\Rightarrow \{1,2,3\}$
Hence (B) is the correct answer.
answered May 26, 2014

1 answer

1 answer

1 answer

1 answer

1 answer

1 answer

1 answer