Question

how many elements has p (A),if A=empty...​

Answer 1

Answer:

Solution : We know, if there are n number of elements in a set A, then, P(A) will have 2n elements. So, P(A) will have 20=1 element.

Answer 2

Answer:

P(A) is the power set of set A

Number of elements of set P(A)=2n

when n is the number of elements of the set A

when A=empty set, then number of elements of set A=0.

Thus, Number of elements of P(A)=2n

=2 to the power 0

= 1

Hence,P(A) has one element.

Step-by-step explanation:

In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.