Sets  (Unit Test Paper) Cbse Class 11 - Mathematics 1. Write the set of all vowels in the English alphabet which precede k. [1] 2. Is pair of sets equal? Give reasons. [1] A = {2, 3} B = x : x is solution of x 2 + 5x + 6 = 0} 3. Write the following intervals in set builder form: [1] (-3, 0) and [6, 12] 4. If X = {a, b, c, d} [1]  Y = {f, b, d, g}