Recent posts tagged short-notes

1
R12(ABCD) and R3(BE); its lossy because B being common ,but it is not the key for R12(ABCD) and R3(BE)..!
3
Take a single person A out of the 10 people. The remaining 9 people has to be either friends or enemy with A. Therefore acc to pigeon hole principle there atleast⎾9/2�...
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