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Domain

If R= 1,-1,...

Question

If $R = {(1, - 1), (2, - 2), (3, - 1)}$ is relation, then find the range of R.

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Solution

Range :- Set of y-coordinates

From given $R = {(1, - 1), (2, - 2), (3, - 1)}$

$∴$ Range $= {- 1, - 2, - 1}$ .

Domain :- Set of x-coordinates

$∴$ Domain $= (1, 2, 3)$

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