Complex Numbers and Operations
Authored by TARA ODY
Mathematics
10th - 12th Grade
CCSS covered
Used 33+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Use square roots to solve this equation: x2 = -18
±√-18
±i√18
±3i√2
±2i√3
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Add:
(5 + 1.2i) + (-6 + 0.8i)
11 + 0.4i
-30.96 - 3.2i
-1.2 + 1.5i
-1 + 2i
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Subtract:
(3 - 2i) - (-9 + i )
12 - 3i
-6 - i
-25 + 21i
9i
Tags
CCSS.HSA.APR.A.1
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Multiply:
3i(5 - 4i)
15 - 4i
12 + 15i
8i + 7i2
3i2
Tags
CCSS.HSA.APR.A.1
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Multiply:
(5 + 2i)(5 - 2i)
10
29
-21
20
Tags
CCSS.HSA.APR.A.1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Factor using sum of squares:
4x2 + 16
(2x + 4)(2x - 4)
(2x + 4i)(2x - 4i)
(2x + 8)(2x - 8)
(2x + 8i)(2x - 8i)
Tags
CCSS.HSA.APR.C.4
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Simplify:
12
1 - i
6 + 6i
4 - 2i
-2 + i
12 - 12i
Tags
CCSS.HSA.APR.A.1
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