1. (-1, 4)
2. (1, 4) ∪ (5, 7)
3. (1, 7)
4. (-1, 1) ∪ (4, 6)
(-1, 1) ∪ (4, 6)
1. c3 = b3d
2. c2 = b2d
3. c = bd3
4. c = bd2
c<sup>3</sup> = b<sup>3</sup>d
1. α2
2. -1 / α
3. 1 / α
4. -1 / α2
1 / α
1. 0
2. 2
3. π/2
4. π - 6
2
1. 0
2. -1
3. 1
4. 2
0
1. 2
2. -2
3. -1
4. 1
-2
1. I - A + A2
2. I + A + A2
3. I + A-1
4. I + A
I - A + A<sup>2</sup>
1. 0
2. π/3
3. π/2
4. 2π/3
2π/3
1. x3 -1
2. x3 + 1
3. x3 + 2
4. x3 - 2
x<sup>3</sup> -1
1. 128√3
2. 256√3
3. -128√3
4. -256√3
-128√3