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9th
-
12th
grade

Mathematics

61%

accuracy

1.8K

plays

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Frederick Thompson

8 years

Mathematics

9th -

12thgrade

Complex Numbers

user

Frederick Thompson

1.8K
plays

11 questions

11 questions

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1. Multiple Choice
45 seconds
1 pt
10
-10
10i
-10i
2. Multiple Choice
30 seconds
1 pt
5i
-5i
5+i
-5
3. Multiple Choice
45 seconds
1 pt
What is the complex conjugate of 4-3i?
A. 1/(4-3i)
B. 1/(4+3i)
C. -4 + 3i
D. 4 + 3i
4. Multiple Choice
30 seconds
1 pt
Simplify:
i⁷
i
-i
1
-1
5. Multiple Choice
30 seconds
1 pt
Solve
3x² - 5 = -446
±√-147
7i√3
±7i√3
-7√3
6. Multiple Choice
30 seconds
1 pt
Simplify:
√-108
3i√6
3i√20
6i√3
20i√3
7. Multiple Choice
30 seconds
1 pt
(5-2i) + (-7+8i)
-2+6i
12+6i
-35-16i²
-35 -16i
8. Multiple Choice
30 seconds
1 pt
(3i)(-2+4i)
-6+12i
-12-6i
-2+7i
12+6i
9. Multiple Choice
30 seconds
1 pt
Multiply:
(4 – 3i)(-7 – 2i)
A. -23 + 13i
B. -23 - 29i
C. -34 + 13i
D. -34 - 29i
10. Multiple Choice
30 seconds
1 pt
Simplify
(-6 - 2i)²
32
36-4i
36+24i
32+24i
11. Multiple Choice
30 seconds
1 pt
A.
B.
C.
D.
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