**How many elements has P(A), if A = Φ?
**
Answer

Φ is an empty or null set so it doesn’t have any element.

So number of element n = 0

Number of elements in a power set n[P(A)] = 2

^{n}
plug n = 0 we get n[P(A)] = 2

^{0} = 1 used formula [a

^{0} =1]

Hence, P(A) has one element.

Thankyou so much.

ReplyDeleteYou help a lot. (Y)

Thankyou so much.

ReplyDeleteYou help a lot. (Y)