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I think only d) is correct

in Set Theory & Algebra by Loyal (5.4k points)
edited by | 92 views
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Real numbers can't be in one-to-one correspondence since it is uncountable.

For natural numbers and integers the co-domain is not equal to range.

Rational numbers will hold true for the function here..
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@Prince Sindhiya

again posting screenshot unnecessarily.

If you do this, we can't find duplicates, hence more redundancy in GO platform and Moreover our time will be wasted unnecessarily. I know to type it takes 10-15 min, but atleast for next time if someone ask the same question i can easily find this search

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@Prince Sindhiya 4 would be correct, 1 and 2 cannot but why not 3 ?

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