Question

Let A= {-3, ‐2, ‐1, 0, 1, 2, 3}
Let B = {0, 1, 2, 3, 4, 5}
Let C = {1, 3, 5, 7, 9}
Which set is equivalent to (A U B) ∩ C ?
A.{1, 3}
B {1, 3, 5}
C {0, 1, 2, 3, 5, 7, 9}
D {‐3, ‐2, ‐1, 0, 1, 2, 3, 4, 5, 7, 9}

Answer 1

first find a union b

Answer 2

what?

Answer 3

union of A and B means all the elements in A and elements in B in one set.

so you get {-3,-2,-1,0,,1,2,3,4,5}

and that set intersected with C is what elements in both sets do they have in common

which we can see is 1,3,5 so the answer is B {1,3,5}

Answer 4

okay thank you alot

Answer 5

welcome anytime