There are 1978 clubs. Fach club has 40 members. It is ONon that every patr of these cluubs has exactly are pmimon menber. Show that there is bne memberwho elongs to every club.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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There are i978 clubs. Fach club has 40 members. It îs
known that every patr of these clubs has exacthy are
common member. Show that there iS bne member who
belongs to every club.
Transcribed Image Text:There are i978 clubs. Fach club has 40 members. It îs known that every patr of these clubs has exacthy are common member. Show that there iS bne member who belongs to every club.
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