(1)∵在平行四边形ABCD中
BC//AD
∴BF//AD
∴EB:EA=EF:ED=2:7
∴DF/EF=(ED-EF)/EF=5/2
(2)∵BC//AD
∵BF:AD=BE:EA=2:7
∵AD=3
∴BF=6/7
∴FC=BC-BF=3-6/7=15/7
(1)∵在平行四边形ABCD中
BC//AD
∴BF//AD
∴EB:EA=EF:ED=2:7
∴DF/EF=(ED-EF)/EF=5/2
(2)∵BC//AD
∵BF:AD=BE:EA=2:7
∵AD=3
∴BF=6/7
∴FC=BC-BF=3-6/7=15/7