A set that contains no elements is called __________.
Finite set
Infinite set
Empty set
Equal sets
{ x : x = 3n, n ∈ N and n < 5 } in roster from is
{ 3, 6, 9, 12 }
{ 1, 2, 3, 4 }
{ 0, 1, 2, 3, }
{ 0, 3, 6, 9, 12 }
Write the set of factors of 18 in tabular form .
{ 1, 2, 3, 6, 9, 18 }
{ 2,3,6,9 }
{1, 2, 3, 6, 9 }
{ 2, 3, 6, 9, 18 }
{ x : x is a vowel in the word MATHEMATICS }. in Roster from is
{ a, a, e, i }
{ a, e, i }
{ a, t, e, i }
( a, a h, i }
If two sets have the same numbers of elements, then the sets are called __________.
Equivalent sets
Write the set of odd natural numbers which lie between 5 and 15 in tabular form.
{ 5, 7, 9, 11, 13, 15 }
{ 7, 9, 11,13 }
{ 5, 7, 9, 11, 13 }
{ 7, 9, 11 13, 15 }
If n ( A ) = 7, n ( B ) = 5 and n ( A ∩ B ) = 4, Find n ( A U B )
8
7
9
12
If n(U)=30, n(B)=20 then n(B')=_____
10
20
50
none of these
If A is any set, then n ( A' ) =
n ( u ) - n ( A )
n ( u )
n ( A )
n ( u ) . n ( A )
A set with limited numbers of different elements is called ___________.
Singleton set
