Given the set M = { prime factors of 25}, M is:
{1, 5, 25).
{5, 25}.
{5}.
{1, 5, 10, 25}.
In set notation, the number of elements in P and not in Q is:
n(P ∩ Q′).
n(P ∩ Q).
n(P′ ∩ Q).
n(P′ ∪ Q).
Inset notation, the shaded region in the figure is:
P ∩ Q'.
Q' ∪ P.
P ∩ Q.
P' ∩ Q.
Given that P and Q are disjoint sets. The relationship between P and Q in set notation is:
n(P ∩ Q) = 0.
P ∩ Q = (∅).
P = Q.
P ∪ Q = ∅.
The number of subsets of the set T = {a, b , c} is:
6.
9.
3.
8.
