Answers

2014-06-28T17:02:59+05:30
P is a set of letters in the phrase"set theory".
P={s,e,t,h,o,r,y}
hope i helped u:)
0
2014-06-28T17:20:28+05:30
 P is a set of letters in the phrase"set theory".
P= is the {s,e,t,t,h,o,r,y}
hope it 
 helped u
0