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Find the domain and range of each of the...

Find the domain and range of each of the following relations :
`R_1={(a,(1)/(a)):0ltalt 5" and a is an integer "}`.

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The correct Answer is:
Dom. `(R_1)={1,2,3,4}` and Range `(R_1)={1,1/2,1/3,1/4}`
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