Test:
Complex Numbers I - Ambitious
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Question 1:
Solve:
(
7
+
5
i
)
−
(
2
+
3
i
)
A
7
B
5
−
2
i
C
5
+
2
i
D
12
+
8
i
Question 2:
Solve:
(
2
+
3
i
)
(
3
+
4
i
)
A
4
+
17
i
B
6
−
12
i
C
−
6
+
17
i
D
2
−
12
i
Question 3:
Simplify:
i
13
A
−
1
B
i
C
−
i
D
1
Question 4:
Simplify:
(
3
−
4
i
)
2
A
−
i
B
−
7
−
24
i
C
25
−
24
i
D
9
−
16
i
Question 5:
Simplify: (2 - 5i)(2 + 5i)
A
29
B
4
+
25
i
C
4
−
25
i
D
−
16
Question 6:
Simplify:
i
27
A
i
B
−
i
C
−
1
D
1
Question 7:
Simplify:
4
−
3
i
2
A
1
B
2
−
3
i
C
2
−
2
i
D
2
−
3
2
i
Question 8:
Simplify:
8
−
5
i
7
+
4
i
A
1
1
6
−
1
1
32
i
B
36
65
−
1
2
65
i
C
17
28
−
2
4
67
i
D
1
2
7
+
1
1
15
i
Question 9:
Simplify:
−
2
−
3
i
4
+
5
i
A
2
15
+
1
17
i
B
13
67
+
2
35
i
C
−
7
25
+
2
43
i
D
−
23
41
−
2
41
i
Question 10:
Simplify:
(
1
+
2
i
)
(
3
−
5
i
)
6
−
8
i
A
1
+
12
i
49
B
7
10
+
1
1
10
i
C
−
33
47
+
45
i
57
D
27
43
−
47
i
59
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