1103024303

Level: 
Project ID: 
1103024303
Accepted: 
1
Clonable: 
0
Easy: 
0
The picture shows a rectangular cuboid ABCDEFGH with a=AB, b=AD, c=AE, x=AK and y=AL. Point K is the midpoint of FG and point L is the centre of face BCGF. Express vectors x and y as a linear combination of vectors a, b, c.
x=a+12b+c; y=a+12b+12c
x=12a+b+12c; y=a12b+12c
x=a+12b+12c; y=a12b+12c
x=a+12b+12c; y=12a+12b+12c