If A = 1, ,2, ,3, ,4 ; B = a, ,b and f is a mapping such that f:A… - Vidyadip

MCQ

If $A = \{ 1,\,2,\,3,\,4\} $; $B = \{ a,\,b\} $ and $f$ is a mapping such that $f:A \to B$, then $A \times B$ is

A
$\{(a, 1), (3, b)\}$
B
$\{(a, 2), (4, b)\}$
✓
$\{(1, a), (1, b), (2, a), (2, b), (3, a), (3, b), (4, a), (4, b)\}$
D
None of these

✓

Answer

Correct option: C.

$\{(1, a), (1, b), (2, a), (2, b), (3, a), (3, b), (4, a), (4, b)\}$

c
(c) It is obvious.

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