The proposition (P ∨ ¬Q) ∧ (¬P ∨ ¬Q) is logically equivalent to:

The determinant of the matrix A = \[\begin{bmatrix}1 & 2 & 3\\0 & 4 & 5\\0 & 0 & 6\end{bmatrix}\] is

Let A and B be two sets with |A| = 4 and |B| = 3. What is the total number of relations from set A to set B?

If g(x) = 1−x and h(x) = x/(x−1), then g(h(x))/h(g(x)) is:

lim(x→∞) x^(1/x) is

Which one of the following is NOT equivalent to p ↔ q?