Question

(5) Write the following sets using rule method.
(i) A = { 1,4,9, 16, 25, 36, 49, 64, 81, 100}
(ii) B = { 6, 12, 18, 24, 30, 36, 42, 48}
(iii) C = {S, M, I, L, E}
(iv) D= {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
X = {a, e, t}​

Answer 1

The answers to the questions could be:-

• A = {x: x is the sum of the odd numbers, starting from 3 and then increasing with each present number, and the present number; x starts with 1; x<101}
• B = {x: x is the multiple of 6, x<49}
• C = {x: x is a letter in the word SMILE}
• D = {x: x is the name of a weekday in order, x begins with Sunday}
• X = {x: x are the first three letters in the word aether}

Answer 2

Answer:

(i) A = {x | x = n², n € N, n ≤ 10}

(ii) B = { x | x = 6n, n, n € N, n ≤ 9}

(iii) C = {y | y is a letter in the world 'SMILE'}

(iv) D = {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}

(v) X = {y | y is a letter is the word 'eat'}