1. 2λ
2. 3 λ
3. 4 λ
4. 2
2
1. 22/3
2. 11/3
3. 1/3
4. 16/3
16/3
1. 1
2. 1/2
3. 1/3
4. 1/6
1/6
1. 0
2. 1
3. 2
4. -1
0
1. 2(axb)
2. 3(axb)
3. 3(axb)
4. none
3(axb)
1. a.(bxc)
2. 2a.(bxc)
3. 3a.(bxc)
4. 0
0
1. 0
2. u.vxw
3. u.wxv
4. 3u.vxw
3u.vxw
1. 9
2. 8
3. 7
4. none
9
1. 10
2. 14
3. 18
4. 12
12
1. all values of λ
2. no value of λ
3. all except two values of λ
4. all except one value of λ
all except two values of λ