Question

A = { 1, 2, 3} what is the number of possible proper subsets at A?​

Answer 1

Answer:

8

Step-by-step explanation:

Since, number of elements is 3 here. So, n=3 which gives,

${2}^{n} = {2}^{3} = 8$

So, number of proper subsets of A={1,2,3} is 8

Answer 2

Answer:

Proper subsets 6

Step-by-step explanation:

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

{1,2},{2,3}

please confirm it..!!