Answers

2016-06-30T21:05:48+08:00
Set f is a subset of set a if all elements of f are also elements of a    for ex. the even no. 2,4,and 12 all belong to the whole set of no. therpore the even no. 2,4,and 12 from subset
 
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2016-06-30T21:12:32+08:00
Example:
Set A
A = { 1,2 }

Subsets of set A:
{ 1 }
{ 2 }
{ 1,2 }
{ }

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