Advertisements
Advertisements
Question
Find the cardinal number of the following set.
Q = `{y : y = 4/(3"n"), "n" ∈ "N" and 2 < "n" ≤ 5}`
Solution
N = {1, 2, 3, 4, …..}
n ∈ {3, 4, 5}
If n = 3, y = `4/(3(3)) = 4/9`
If n = 4, y = `4/(3(4)) = 4/12`
If n = 5, y = `4/(3(5)) = 4/15`
Q = `{4/9, 4/12, 4/15}`
n(Q) = 3
APPEARS IN
RELATED QUESTIONS
Write with reason, whether the following set is finite or infinite.
Set of people from your village.
Write with reason, whether the following set is finite or infinite.
Set of apparatus in the laboratory
If M = {1, 3, 5}, N = {2, 4, 6}, then M ∩ N = ?
Find, if the following sets are empty:
The set of points of intersection of two parallel lines.
State if the following set is a finite set or an infinite set:
The set of integers less than 10.
State if the following set is a finite set or an infinite set:
{x : x = 3n – 2,n ∈ Z, n ≤ 8}
Identify the pair of sets are disjoint or overlapping?
A = {f, i, a, s} and B = {a, n, f, h, s}
If n[P(A)] = 256, find n(A)
If B – A is B, then A ∩ B is
