Question

if n(A)=4 ,find n[P(A)]

Answer 1

Answer:

Generally, the formula for finding the power of a set is 2^n where n is the number of elements in the given set.

So here n=2

So 2^2=4 is cardinal of P ( means number of max subsets)

Now understand what do you mean by this.

Power of a set = the maximum number of subset you can get from that set.

Here power is 4 means you can get 4 subsets i.e. P(A)={{},{1},{2},{1,2}}

Remember empty set is a subset of every set. Another example:

B={1,2,3}

P(B)={ {},{1},{2},{3},{1,2},{2,3},{1,3}{1,2,3}}

In formula here n=3

Answer 2

Hey mate !!!! here's your answer

hope it's helpful for u

if it's helpful for u then please like and mark me as brainliest and also follow me..