Question

a) A = {xx is a letter before "a" in English alphabet)​

Answer 1

Answer:

as is the answer

Step-by-step explanation:

olz mark me

Answer 2

Answer:

Better

Step-by-step explanation:

Describe the following sets in Roster form:

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

(ii) {x ∈ N: x2 < 25}

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

(iv) {x ∈ N: x = 2n, n ∈ N}

(v) {x ∈ R: x > x}

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

(vii) {x : x is 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.