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magical cook
- Master | Next Rank: 500 Posts
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Stmt 1 - (1-x)(1-y) = 1 can be written as
1-x-y+xy=1 => xy = x+y SUFF
Stmt 2 - can be written as
(x+y)(x-y) = xy(x-y) => x+y = xy SUFF
ANS D
