2. Find A' when
(1) A = {0, 1, 4, 7) and Ę = {x|x € W, x S 10}
(ii) A = {consonants) and 5 = {alphabets of English)
(iii) A = {boys in class VIII of all schools in Bengaluru) and
$ = {students in class VIII of all schools in Bengaluru}
(iv) A = {letters of KALKA) and Ę = {letters of KOLKATA
(v) A = {odd natural numbers) and Ę = {whole numbers).
Answers
Answer:
Q.2 Find A' when,
i) A = {0,1,4,7} and E = {x:x belong to Whole number , x is smaller then 10}
We know that, E - A = A'
A' = {2, 3, 5, 6, 8, 9}
ii) A = {consonants} and S = {alphabets of english}
We know that, A' = S - A
A' = {vowel of english alphabets i.e. a, e, i, o, u}
iii) A = {boy in class VIII of a schools in Bengaluru} and S = {Students in class VIII of all school in Bengaluru}
We know that, A' = S - A
A' = {All student school in Bengaluru and girl of class VIII of a school except boy in class VIII of a school in Bengaluru}
iv) A = {letter of KALKA} and E = {letters of KOLKATA}
We know that, A' = E - A
A' = {O, L, T}
v) A = {odd natural numbers} and E = {Whole numbers}.
We know that, A' = E - A
A' = {With 0 all even natural numbers}