web analytics

Ex 1.1, 6 - Match roster form to set-builder form - Sets - Depicition of sets - Set builder form

  1. Chapter 1 Class 11 Sets
  2. Serial order wise
Ask Download

Transcript

Ex 1.1,6 Match each of the set on the left in the roster form with the same set on the right described in set-builder form: (i) {1, 2, 3, 6} (a) {x : x is a prime number and a divisor of 6} (ii) {2, 3} (b) {x : x is an odd natural number less than 10} (iii) {M,A,T,H,E,I,C,S} (c) {x : x is natural number and divisor of 6} (iv) {1, 3, 5, 7, 9} (d) {x : x is a letter of the word MATHEMATICS}. {x : x is a prime number and a divisor of 6} 6 = 6 × 1 6 = 3 × 2 1,2,3,6 are divisors of 6 , out of which 2,3 are prime So, (ii) matches (a) (i) {1, 2, 3, 6} (a) {x : x is a prime number and a divisor of 6} (ii) {2, 3} (b) {x : x is an odd natural number less than 10} (iii) {M,A,T,H,E,I,C,S} (c) {x : x is natural number and divisor of 6} (iv) {1, 3, 5, 7, 9} (d) {x : x is a letter of the word MATHEMATICS}. {x : x is an odd natural number less than 10} Natural numbers are 1,2,3,4,5,6,7,8,… Odd Natural numbers are 1,3,5,7,9,11,13 Odd natural numbers less than 10 are 1,3,5,7,9 Hence (iv) matches (b) {x : x is a natural number and a divisor of 6} 6 = 6 × 1 6 = 3 × 2 1,2,3,6 are divisors of 6 , So, (i) matches (c) {x : x is a letter of the word MATHEMATICS}. There are 8 letters of the word MATHEMATICS and 3 letters M,A and T are repeated, So (iii) matches (d).

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .
Jail