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

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(52788) (Show Source): You can put this solution on YOUR website!
.

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

See the lesson
- Counting elements in sub-sets of a given finite set
in this site.

/\/\/\/\/\/\/\/

For the second "set", the meaning is dark, so I even will not touch it.

RELATED QUESTIONS
Calculate the number of subsets and the number of proper subsets for the given set. {x (answered by jim_thompson5910)

Calculate the number of sunsets and proper subsets for the following set: {x / x is a... (answered by ikleyn)

Calculate the number of distinct sunsets and the number of distict proper subsets for... (answered by MathLover1)

Calculate the number of distinct subsets and the number of distinct proper subsets... (answered by ikleyn)

first calculate the number of subsets for the set, then calculate the number of... (answered by math_helper)

I did not see the correct title which is Finite Math. For the given set, first... (answered by MathLover1)

Find the number of subsets of the given set. {x|x is an even counting number between 7... (answered by richard1234)

Find the number of subsets of the set. {X|X is an even number between 11 and... (answered by Fombitz)

for the given set, first caclulate the number of subsets for the set then calculate the... (answered by MathLover1)