# Set Theory and Algebra MCQ - Sets

91:

Which of the following is a partition of the set S = {l, 2, 3, 4, 5, 6} ?

 A. [{(I, 3, 5), {2, 4}, {3, 6)] B. [{I, 5}, {2}, {3, 6)] C. [{(I, 5), {2}, {4}, {l, 5}, {3, 6)] D. [{I, 2, 3, 4, 5, 6}] Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
92:

The domain and range are same for

 A. constant function B. identity function C. absolute value function D. greatest integer function Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
93:

The number of functions
f : (1, 2, 3,......., n),  (1, 2,..........., m),
which are one-to-one is

 A. mn B. m (m - 1) (m - 2) ..........(m - n + 1) C. nm D. n (n - 1) (n - 2)............(n - m + 1) Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
94:

∪ B = A ∩ B if and only if

 A. A is empty set B. B is empty set C. A and B are non-empty sets D. A and B are empty sets Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
95:

The function f : Z → Z given by f(x) = x2 is

 A. one-one B. onto C. one-one and onto D. None of these Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here: