(a) If A = {set of all prime numbers between 15 and 25} and B = {set of all composite numbers between 25 and 35}, then A ↔ B (b) A = {all prime numbers between 90 and 100} is ...

## Answer Gyaan Latest Questions

(a) P and Q are disjoint (b) P and R are overlapping (c) P’ and Q’ are disjoint (d) Q’ and R’ are overlapping

(a) A ⊂ B (b) B ⊆ A ⊆ U (c) E ⊂ D (d) F ⊆ E (e) D ⊂ F (f) F ⊆ D ⊆ C (g) D ⊆ E ⊆ U

Let A = {1, 2, 3, 4, 5}; B = {7, 9, 11, 12, 13}; C = {x : x ∈ U and x is a prime number}; D = {x : x ∈ U, x < 6} and U ...

List the following sets and write the number of subsets that can be made from each. (a) A = {x : x ∈ N and x is 1-digit prime number} (b) B = {set of all months of the year ...

In the following find whether the sets A and B are equal sets or equivalent sets. (a) A = {x : x ∈ N, x ≤ 7}; B = {x : x ∈ W, x < 7} (b) A = ...

Classify the following as an empty set or a singleton set or a finite set. (a) A = {x : x ∈ Z, 0, < x < 1} (b) B = {set of all natural satellites of the earth} (c) ...

Classify the following as finite or infinite sets. If finite, find its cardinal number. (a) A = {X : X Q, 0 < X < 1} (b) B = {x : x = n2, n ∈ N, x < 500}

If 9n × 32 × 3n – (27)n/(33)5 × 23 = 1/27, find the value of n.

Find the values of n in each of the following : (i) (3/2)4 × (3/2)5 = (3/2)2n+1