Asked by Cow
I have trouble with remembering sets. So these are my questions, and can someone show me how to do them?
(1)Z is the set of all letters of the alphabet. Z={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}
(a) A is a subset of set Z. A= {a, b, c, d, e, f, g, h, I, j, k, l, m, n, o, p, q, r, s, t}. What is A’?
(b) B= {w, x, y}. What are all of the subsets of set B?
(c) What is the set of 𝑨 ∪ 𝑩?
(d) What is the set of 𝑨 ∩ 𝑩?
I want to do the work myself but I just need the steps!
(1)Z is the set of all letters of the alphabet. Z={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}
(a) A is a subset of set Z. A= {a, b, c, d, e, f, g, h, I, j, k, l, m, n, o, p, q, r, s, t}. What is A’?
(b) B= {w, x, y}. What are all of the subsets of set B?
(c) What is the set of 𝑨 ∪ 𝑩?
(d) What is the set of 𝑨 ∩ 𝑩?
I want to do the work myself but I just need the steps!
Answers
Answered by
oobleck
A' is all the letters in Z but not in A
B has 8 subsets, consisting of any possible combinations of elements of B (including none or all of them)
Since B is a subset of A, AUB = A
similarly, A∩B = B
better read up on union and intersection
B has 8 subsets, consisting of any possible combinations of elements of B (including none or all of them)
Since B is a subset of A, AUB = A
similarly, A∩B = B
better read up on union and intersection
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