How many elements does P A have- If A -A- 1B- 4C- 2D- 0

The correct option is A 1 Here A = Φ i.e. n(A) = 0 , therefore n [P(A)] = 20 = 1 ...

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Quantum Numbers

How many elem...

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How many elements does P(A) have, If A = Φ

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