Question

1) Describe the following sets in Roster form

i) {x/x is a letter of the word 'MARRIAGE'}

ii) {x/x is an integer,

1

2

9

2

x }

iii) {x/x = 2n, n∈N}​

Answer 1

Step-by-step explanation:

(i) Elements of the set are, M,A,R,I,G,E

   ∴ set,A={M,A,R,I,G,E}

(ii) Integers, > −1/2 and  < 9/2 are 0,1,2,3,4

     ∴ set,B={0,1,2,3,4}

(iii) x is Natural number,

    ⟹x=1,2,3,4,−−−−−,n

     Elements(2n) are, 2,4,6,8,10,−−−−−,2n

    ∴ set,C={2,4,6,8,10,−−−−,2n}