Set, Relation and FunctionMedium
Question
Let the relation R on the set $M = \{ 1,2,3,\ldots\ldots.16\}$ be given by
$R = \{(x,y):4y = 5x - 3,x,y \in M\}$.
Then the minimum number of elements required to be added in R , in order to make the relation symmetric, is equal to
Options
A.1
B.2
C.4
D.3
Solution
$\ R = \{(3,3),(7,8),(11,13)\}$
to make it symmetric $(8,7),(13,11)$ must be added.
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