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State which of the following sets are fi...

State which of the following sets are finite or infinite
{x:x `in` N and `x^2`-3x+2=0}

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(i) Given set .=1,2 .. Hence, it is .finite.
(ii) Given set .=2 .. Hence, it is finite.
(iii) Given set .=phi .. Hence, it is finite.
(iv) The given set is the set of all prime numbers and since set of prime numbers is infinie:
Hence the given set is infinite (v) Since there are infinite number of odd numbers. hence. the given set is infinite.
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