1 Find the cardinal number of the following sets: (i) A1 = { 2, 1, 1, 3, 5} - Maths - Sets

Question

1 Find the cardinal number of the following sets:
(i) A1 = {–2, –1, 1, 3, 5}
(ii) A2 = {x : x ∈ N and 3 ≤ x < 7}
(iii) A3 = {p : p ∈ W and 2p – 3 < 8}
(iv) A4 = {b : b ∈ Z and –7 < 3b – 1
≤ 2}

2 If P = {p : p is a letter in the word 'PERMANENT'}, find n(P)

Rishabh Mittal · Accepted Answer

Dear Student,

2
Letters in the word 'PERMANENT' areP E R M A N TSo, nP=7

Please ask single query in single thread

Regards

1. Find the cardinal number of the following sets: (i) A1 = {–2, –1, 1, 3, 5} (ii) A2 = {x : x ∈ N and 3 ≤ x < 7} (iii) A3 = {p : p ∈ W and 2p – 3 < 8} (iv) A4 = {b : b ∈ Z and –7 < 3b – 1 ≤ 2} 2. If P = {p : p is a letter in the word 'PERMANENT'}, find n(P).

1. Find the cardinal number of the following sets:
(i) A₁ = {–2, –1, 1, 3, 5}
(ii) A₂ = {x : x ∈ N and 3 ≤ x < 7}
(iii) A₃ = {p : p ∈ W and 2p – 3 < 8}
(iv) A₄ = {b : b ∈ Z and –7 < 3b – 1 ≤ 2}

2. If P = {p : p is a letter in the word 'PERMANENT'}, find n(P).