1. If A = {1, 2, a, 4, b} Then the number of subsets of the set A is
2. If B = {x/ x is a vowel, x is not “a” or “ i ”} then B =
3. A n U =
If A = diag (2, -3, 5) and B = diag (7, 4, 6). Then AB is
If u = (3, -5, 2) and v = (4, 1, -2). Then u·v =
u = (2, -7, 1), then norm (u) =