A set which contains no element is called __________
Infinite set
Empty set
Equal set
Equivalent set
If A = {a, b, c, d, e}. Then n(A) =
5
3
25
2^{5}
If A = { x: x is a prime number ?17}. Then A in Roster form is
A = {3, 5, 7, 11, 13, 17}
A = {1, 2, 3, 5, 7, 11, 13, 17}
A = {2, 3, 5, 7, 11, 13,17}
None of these
If A = (1, 2, 5} and B = {3, 6, 9}, then A ∪ B = _______
{}
{1, 2, 5, 6, 9}
{1, 2, 3, 5, 6, 9}
The set of all subsets of a set A is the _________ of the set A.
Super set
Proper set
Power set
The smallest set A such that A {1,2} = {1, 2, 3, 5, 9} is
{3, 5, 9}
{2, 3, 5}
{1, 2, 5, 9}
If A = {a, b, c, d, e} c = {a, e} then A∩C = ___________
{a, b, c, d, e}
{b, c, d}
∅
{a, e}
Which one represent the empty set
0
{0}
Two equal sets are always
Disjoint set
Singleton set
If A = {a, b, c} then power set of A is
{a, b, c, ∅}
{{a}, {b}, {}}
{{a}, {b}, {c}, {a, b}, {a, c}, {b, c}, {a, b, c}}
{{a}, {b}, {c}, {a, b}, {a, c}, {b, c}, {a, b, c}, {}}