{ 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 { 0, 2, 4,6, 8, 10} in description method
{ Natural numbers less than 12 }
{ Even natural numbers less than 12 }
{ Even whole numbers less than 12 }
{ whole numbers less than 12 }
If two sets have the same numbers of elements, then the sets are called __________.
Finite set
Empty set
Equal sets
Equivalent sets
A set which contains all set under consideration as subsets, is called ___________.
Subset
Universal set
Disjoint set
A set with unlimited number of different elements is called _________.
finite set
Infinite set
Singleton set
If two sets have the same elements, then the sets are called _____________.
If n ( A ) = 7, n ( B ) = 5 and n ( A ∩ B ) = 4, Find n ( A U B )
8
7
9
12
If A is any set, then n ( A' ) =
n ( u ) - n ( A )
n ( u )
n ( A )
n ( u ) . n ( A )
Write { x : x ∈ I and -3 < x ≤ 3 }
{ -3, -2, -1, 0, 1, 2, 3 }
{ -2, -1, -1 0, 1, 2, 3, }
{ -3, -2, -1, 0, 1, 2, }
{ 0, 1, 2, 3 }