Complex Number Introduction
Authored by Anthony Clark
Mathematics
11th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Simplify:
i7
i
-i
1
-1
Tags
CCSS.HSN.CN.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(5-2i) + (-7+8i)
-2+6i
12+6i
-35-16i2
-35 -16i
Tags
CCSS.HSN.CN.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Multiply:
(4 – 3i)(-7 – 2i)
-23 + 13i
-23 - 29i
-34 + 13i
-34 - 29i
Tags
CCSS.HSN.CN.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a complex number?
A number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit.
A number that can only be expressed in the form a - bi
A number that has no real part
A number that can only be expressed in the form a + bi
Answer explanation
A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is the imaginary unit. This choice correctly defines a complex number.
Tags
CCSS.HSN.CN.A.1
6.
MATCH QUESTION
1 min • 5 pts
Match the complex conjugate pairs:
x-2i
x+2i
-x+2i
5-6i
-5+6i
-x-2i
5+6i
-5-6i
Tags
CCSS.HSN.CN.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Simplify.
-5i
5
5i
-5
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