For a set K = {0} U {1/n | n in N (natural number} U [1, 2) withR subspace topology.
The following sets are open, closed, or neither in set K?
1. {1/n | n in N}
2. {1/n} for n in N
3. {1/n | k >= 2}
For a set K = {0} U {1/n | n in N (natural number} U [1, 2) with R subspace topology. The following sets are open, close
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For a set K = {0} U {1/n | n in N (natural number} U [1, 2) with R subspace topology. The following sets are open, close
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