Operations of Imaginary Numbers

Quiz
•
Mathematics
•
11th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Simplify -√-8
-i√8
-2i√2
2i√2
-8i
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Multiply:
(4 – 3i)(–7 – 2i)
FYI - your calculator can do this one :)
–23 + 13i
–23 – 29i
–34 + 13i
–34 – 29i
Tags
CCSS.HSN.CN.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using your calculator, evaluate i7
-1
1
i
-i
Tags
CCSS.HSN.CN.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using your calculator, evaluate i2
-1
1
i
-i
Tags
CCSS.HSN.CN.A.1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the simplified form of (–9 + 5i) + (3 – 2i)
–12 + 31i
–6 + 3i
–11 + 7i
5 – 3i
Tags
CCSS.HSN.CN.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the simplified form of (–3x + 2i)(x– 4i)
–3x2 + 6xi – 8
–3x2 + 6xi + 8
–3x2 + 14xi – 8
–3x2 + 14xi + 8
Tags
CCSS.HSN.CN.C.8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(5x – 2i) + (–7x + 8i)
–2x + 6i
12x + 6i
–35x – 16i2
–35 – 16i
Tags
CCSS.HSN.CN.A.2
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