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प्रश्न
Write the cardinal number of the following set:
E = Set of prime numbers between 5 and 15
उत्तर
E = Set of prime numbers between 5 and 15:
n(E) = 3
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संबंधित प्रश्न
Write the cardinal number of the following set:
D = Set of letters in the word “PANIPAT”.
Write the cardinal number of the following set:
G = {x : x is a perfect square number, x ∈N and x ≤ 30}.
The set, given below, state whether it is finite set, infinite set or the null set:
A = {x : x is an integer between 1 and 2}
The set, given below, state whether it is finite set, infinite set or the null set:
{even numbers not divisible by 2}
Fill in the blank:
The empty set is a ____ of every set.
Fill in the blank:
If A is a proper subset of B, then n (A) _____ n (B).
If A = {x: x is natural number divisible by 2 and x< 16} and
B = {x:x is a whole number divisible by 3 and x < 18}, find: n(B).
Let A and B be two sets such that n(A) = 45, n(B) = 38 and n(A ∪B) = 70, find: n (A ∩ B).
Let n(A) 30, n(B) = 27 and n(A∪B) = 45, find: n(A - B).
Let n(A) = 31, n(B) = 20 and n(A ∩ B) = 6, find: n (A - B).
