Menu Close

find-C-8-15-C-9-15-C-7-15-C-6-15-pleas-help-me-sir-




Question Number 74003 by mhmd last updated on 17/Nov/19
find C_8 ^(15) +C_9 ^(15) −C_7 ^(15) −C_6 ^(15)  ?  pleas help me sir ?
findC815+C915C715C615?pleashelpmesir?
Commented by mr W last updated on 17/Nov/19
using C_r ^n =C_(n−r) ^n   C_8 ^(15) +C_9 ^(15) −C_7 ^(15) −C_6 ^(15)   =C_8 ^(15) +C_9 ^(15) −C_8 ^(15) −C_9 ^(15)   =0
usingCrn=CnrnC815+C915C715C615=C815+C915C815C915=0

Leave a Reply

Your email address will not be published. Required fields are marked *