SOLUTION: calculate the number of subsets and proper subsets for each set.
{x|x Є N and 0 < x ≤ 4}
{x|x is the number of sides on a pentagon}
Thank you in advance,
SYL
Algebra ->
Finite-and-infinite-sets
-> SOLUTION: calculate the number of subsets and proper subsets for each set.
{x|x Є N and 0 < x ≤ 4}
{x|x is the number of sides on a pentagon}
Thank you in advance,
SYL
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Question 1153949: calculate the number of subsets and proper subsets for each set.
{x|x Є N and 0 < x ≤ 4}
{x|x is the number of sides on a pentagon}
Thank you in advance,
SYL Answer by ikleyn(52781) (Show Source):
I will give the solution for the first set, where the meaning is clear.
The set contains 4 integer numbers 1,2,3,4.
Hence, the number of all subsets is = 16.
Exclusing one improper subset, you obtain 16-1 = 15 proper subsets. ANSWER
