Question

Q 2 Find AU(BUC) if A=(1,2,3,4),
B=(2,3,5,7) and C=(1,3,5,9) *
O (2,3)
(2,3,5,7)
O
O
O
(1,2,3,4,5,7,9)
None of the above​

Answer 1

Given:

★ A ={2,3,5,7}

★B ={2,3,5,7}

★C ={1,3,5,9}

To Find:

★$\sf{A\cup (B\cup C)}$

Answer:

First let's find $\bf{B\cup C}$

$\mapsto B\cup C= \{1,2,3,5,7,9\}$

$\rule{200}3$

So,

$\mapsto A\cup(B\cup C)$

$\mapsto \{1,2,3,4\}\cup\{1,2,3,5,7,9\}$

${\underline{\red{\bf{\leadsto A\cup(B\cup C)=\{1,2,3,4,5,7,9\}}}}}$