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When A = phi, the number of elements in ...

When `A = phi`, the number of elements in `P(A)` is `"……………"` .

Text Solution

Verified by Experts

We know, if there are n number of elements in a set A, then,
`P(A)` will have `2^n` elements.
If, `A = phi`, then, `n=0`
So, `P(A)` will have `2^0 = 1` element.
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