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Operation With Complex Numbers
Test Description: Add, subtract, and multiply complex numbers
Instructions: Answer all questions to get your test result.
1) (-4 - 7i) + (5 - 7i)
A
-1
B
-1 + 14i
C
1 - 14i
D
1
2) (-8 - 3i) - (3 + 2i)
A
-11 - 5i
B
11 + 5i
C
5 + i
D
-5 - i
3) (8 - 4i)(2 - 6i)
A
40 - 40i
B
8 + 56i
C
-40 + 40i
D
-8 - 56i
4) (5 + 8i)(6 + 3i)
A
6 + 63i
B
-54 + 63i
C
54 - 63i
D
-6 + 63i
5) 3 + 3i + 8 - 2i - 7
A
-4 + i
B
4 + i
C
4 - i
D
-4 - i
6) (-8i) - (3i) - (-7 - 6i)
A
-7 + 5i
B
7 - 5i
C
-7 - 5i
D
7 + 5i
7) (5 + 4i)^2
A
25 + 16i
B
9
C
41 + 40i
D
9 + 40i
8) (6i)(7 - 7i) + (i)(1 + 3i)
A
39 + 42i
B
39 + 43i
C
45 + 42i
D
45 + 43i
9) (-4i)(-5 - 5i) - 7(1 - 4i)
A
13 + 48i
B
-27 - 8i
C
-27 + 48i
D
13 - 8i
10) 2(3i) - (5i)(-8 + 5i)
A
25 + 46i
B
-25 - 36i
C
25 - 36i
D
-25 + 46i
*select an answer for all questions
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