Question

Aratati ca in triunghiul ABC,MN si BC sunt paralele,unde vectorul AM=5MB,AN=5/6×AC

Answer 1

ABC,MN =BC
ABCMN=BC {A,M,N}
AM=5MB
AN=5\6*AC
AC=5\6:5
AC=1\1
AN=5\6*1
AN=5\6
ABC,MN si BC ==> sunt paralele