Mathematics
Mathematics, 11.10.2019 00:20, smithsa10630

Determine whether each of these sets is countable oruncountable. for those that are countably infinite, exhibit
a) one-to-one correspondence between the set of positiveintegers and that set.
b) integers divisible by 5 and not 7
c) the real numbers with decimal of all 1’s
d) the real numbers with decimal of all 1’s or 9’s

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Determine whether each of these sets is countable oruncountable. for those that are countably infini...

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