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प्रश्न
If B = {5, 4, 6, 8}, then number of proper subsets of B = ____.
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उत्तर
If B = {5, 4, 6, 8}, then number of proper subsets of B = 24 – 1 = 2 × 2 × 2× 2 – 1 = 16 – 1 = 15.
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संबंधित प्रश्न
Express the following sets in roster form:
D = Set of Prime numbers from 2 to 23.
Given: A = {x : x is a multiple of 2 and is less than 25}. Write the set in roster form.
Given: C = {x : x is a multiple of 3 and is less than 25}. Write the set in roster form.
State whether the given pair of set is equal or equivalent.
M = {multiples of 2 and 3 between 10 and 20} and
N = {multiples of 2 and 5 between 10 and 20}.
State whether the given pair of set is equal or equivalent.
P = {prime numbers which divide 70 exactly} and
Q = {prime numbers which divide 105 exactly}
Examine if the following set is the empty set:
{x + 3 = 2 and x ∈ N}
State true or false of the following statement:
If A and B are two different infinite sets, then n (A) = n (B).
If P = {2, 3, 4, 5}; then D = {6, 5, 4} is proper subset of P?
If A = {even numbers less than 12},
B = {2, 4},
C = {1, 2, 3},
D = {2, 6} and E = {4} then
State if the following statement is true:
A ⊇ B ⊇ E
Given A = {a, c}, B = {p, q, r} and C = Set of digits used to form number 1351. Write the subset of set A.
