document.write( "Question 143001This question is from textbook Survey of Math w/ Apllications
\n" ); document.write( ": Please help me solve this problem:\r
\n" ); document.write( "\n" ); document.write( "2. (4 points) Write down all possible subsets of {a, b, c, d}
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Algebra.Com's Answer #166206 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Here are all of the possible subsets of {a,b,c,d}\r
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\n" ); document.write( "\n" ); document.write( "{a,b,c,d},
\n" ); document.write( "{a,b,c},{a,b,d},{a,c,d},{b,c,d},
\n" ); document.write( "{a,b},{a,c},{a,d},{b,c},{b,d},{c,d},
\n" ); document.write( "{a},{b},{c},{d},{ }\r
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\n" ); document.write( "\n" ); document.write( "note: the last set { } is the null set or the empty set
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