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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
What is the cardinality of these sets in the order of their serial number?
(i) ${a}$
(ii) ${{a}}$
(iii) ${a, {a}}$
(iv) ${a, {a}, {{a}}}$
Solution
(i) ${a}$ → 1 element
(ii) ${{a}}$ → 1 element
(iii) ${a, {a}}$ → 2 elements
(iv) ${a, {a}, {{a}}}$ → 3 elements
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