1. Evaluate the expression ( i) + ( i) and write the result in the form a + bi. Choose the answer from the following:
19 + 4i
19 - 4i
4 + 19i
8 + 16i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

2. Evaluate the expression {image} and write the result in the form a + bi. Choose the answer from the following:
11 + 7i
7 + 11i
11 - 3i i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

3. Evaluate the expression i 9 and write the result in the form a + bi
Evaluate the expression i 9 and write the result in the form a + bi. Choose the answer from the following: i
- (i) -1 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

4. Evaluate the expression {image} and write the result in the form a + bi. Choose the answer from the following: i i i i 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

5. x = 4 + 4i, x = 4 - 4i x = 4 + 5i, x = 4 - 5i x = 4, x = - 4
Find all solutions of the equation 4 x x = 0 and express them in the form a + bi. Choose the answer from the following:
x = 4 + 4i, x = 4 - 4i
x = 4 + 5i, x = 4 - 5i
x = 4, x = - 4
No solutions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50