Describe the following sets in Roster form : (i) {x : x is a letter b

1.	Describe the following sets in Roster form : (i) {x : x is a letter before e in the English alphabet}. (ii) {x ϵ N:x2<25} (iii) {x ϵ N: x is a prime number, 10 < x < 20}. (iv) x ϵ N:x=2n,nϵN. (v) x ϵ R:x>x. (vi) {x : x is a prime number which is a divisor of 60} (vii) {x : x ix a two digit number such that the sum of its digits is 8}. (viii) The set of all letters in the word ' Trigonometry'. (ix) The set of all letters in the word 'Better'.
Answer» Describe the following sets in Roster form : (i) {x : x is a letter before e in the English alphabet}. (ii) { $x ϵ N : x^{2} < 25$ } (iii) { $x ϵ N$ : x is a prime number, 10 < x < 20}. (iv) $x ϵ N : x = 2 n, n ϵ N$ . (v) $x ϵ R : x > x$ . (vi) {x : x is a prime number which is a divisor of 60} (vii) {x : x ix a two digit number such that the sum of its digits is 8}. (viii) The set of all letters in the word ' Trigonometry'. (ix) The set of all letters in the word 'Better'.

Describe the following sets in Roster form : (i) {x : x is a letter before e in the English alphabet}. (ii) {x ϵ N:x2<25} (iii) {x ϵ N: x is a prime number, 10 < x < 20}. (iv) x ϵ N:x=2n,nϵN. (v) x ϵ R:x>x. (vi) {x : x is a prime number which is a divisor of 60} (vii) {x : x ix a two digit number such that the sum of its digits is 8}. (viii) The set of all letters in the word ' Trigonometry'. (ix) The set of all letters in the word 'Better'.

Answer»

Describe the following sets in Roster form :

(i) {x : x is a letter before e in the English alphabet}.

(ii) { $x ϵ N : x^{2} < 25$ }

(iii) { $x ϵ N$ : x is a prime number, 10 < x < 20}.

(iv) $x ϵ N : x = 2 n, n ϵ N$ .

(v) $x ϵ R : x > x$ .

(vi) {x : x is a prime number which is a divisor of 60}

(vii) {x : x ix a two digit number such that the sum of its digits is 8}.

(viii) The set of all letters in the word ' Trigonometry'.

(ix) The set of all letters in the word 'Better'.