Let S = {3, 6, 9} and T={A, B, C} use the set-roster notation to write each of the following sets and indicate the number of elements in each set a. S times T b. T times S Define a relation T from R to R as follows. For all real numbers x to y as (x, y) belongs to T means that 2y^2 + 3x^2 = 1. Is T a function? Explain. Use truth tables to test the truth of the following statements. A conditional statement is not logically equivalent to its converse Use truth tables to verify ~ (p rightarrow q) = P^A ~