Think Mathy

Subtract -5 from +5

For a set A and the universal set U, A ∩ Ac =
A) A
B) Ac
C) φ
D) U

Topology

Topology is a branch of Geometry that deals with specific properties of Geometric shapes that stay the same, no matter how much the shapes are bent, stretched or deformed.

If A ⊆ B and B ⊆ A, then:
A) A = Φ
B) A = B
C) B = Φ
D) A ∩ B = Φ