Question

Given the sets A={1,6} and B={6,3,2,4,8}, compute

1) {x∈B.x is even}?

Answer 1

(I think)
\[\LARGE B=\{6,3,2,4,8\}\quad\forall \quad \quad x\in B, \quad \quad x \quad- even\]
\[\LARGE x=\{2,4,6,8\}\]
3-is odd so...