If A = [5, 6, 7] and B = [7, 8, 9] then A B is equal to. - Vidyadip

MCQ

If $A = [5, 6, 7]$ and $B = [7, 8, 9]$ then $\text{A } \cup \text{ B}$ is equal to.

A
$[5, 6, 7]$
✓
$[5, 6, 7, 8, 9]$
C
$[7, 8, 9]$
D
None of these

✓

Answer

Correct option: B.

$[5, 6, 7, 8, 9]$

Given $A = [5, 6, 7]$ and $B = [7, 8, 9]$
then $\text{A } \cup \text{ B}=[5, 6, 7, 8, 9]$

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