cho 2012 duong thang trong do khong co 2 duong thang nao song song va khong co 3 duong thang nao dong quy . Tim so giao diem cua cac duong thang ay
Cho n duong thang trong do bat cu 2 duong thANG CUNG CAT NHAU ,KHONG CO 3 DUONG THANGnao dong quy , biet so giao diem cua chung la 780 Tim n
cho 2016 duong thang trong do bat ki 2 duong thang nao cung cat nhau. Khong co 3 duong thang nao dong qui.Tinh so giao diem cua chung
cho 2006 duong thang trong do bat ki 2 duong thang nao cung cat nhau . khong co ba duong thang nao dong qui. tinh so giao diem cua chung.
CHO 101 DUONG THANG TRONG DO CO BAT KY 2 DUONG THANG NAO CUNG CAT NHAU , TRONG DO CO 4 DUNG THANG DONG QUY . TINH SO GIAO DIEM CUA CHUNG .
Cho n duong thang trong do bat cu hai duong thang nao cung cat nhau,khong co ba duong thang nao cung di qua 1 diem.
a)Biet rang so giao diem cua cac duong thang do la 1128 . Tinh n.
b)So giao diem cua cac duong thang do co the la 2017 duoc khong?Vi sao?
cho n duong thang ( n lon bang 2 )trong do 2 duong thang nao cung cat nhau , khong co 3 duong thang nao dong quy
a. tinh so giao diem neu n= 4
b.tinh so giao diem theo n
cho 2006 duong thang trong do bat ki 2 duong thang nao cung cat nhau.khong co 3 duong thang nao dong qui.tinh so giao diem cua chung
Cho 2010 duong thang trong do bat ki 2 duong thang nao cung cat nhau.Khong co 3 duong thang nao dong quy.Tinh so giao diem cua chung?