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Let A be the set of first 10 natural numbers an $R = {(x, y) / x \in A, y \in N a n d x + 2 y = 10}$ then $n {d o m (R^{- 1})} =$

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Detailed Solution

$R = {(2, 4), (4, 3), (6, 2), (8, 1)}$

The domain of inverse relation is $\{1, 2, 3, 4\}$

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