Question

n (P(AnB))
= 128
and n(AUB) = 5 n (P(B)) = 2
find n(A) = ?​

Answer 1

Answer:

1280 because they have been able to do yourself this is not come PLS MARK AS BRAINLIST

Answer 2

Answer:

The formula for finding power set is

..if A is a set with n(A) = m then

n{P(A)} = 2^m.

Here m=2 then n{P(A)}= 2^2 = 2×2=4.