Mastering Complex Conjugates
Authored by Rhonda Pridgen
Mathematics
11th Grade
CCSS covered
Used 5+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Divide the complex numbers (3 + 4i) by (1 - 2i) and express the result in standard form.
2 + i
1 + 2i
-1 + 2i
11/5 + 2/5i
Tags
CCSS.HSN.CN.A.3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the conjugate of the complex number 7 - 5i.
7 + 5i
-7 + 5i
-7 - 5i
5i - 7
Tags
CCSS.HSN.CN.A.3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rationalize the denominator of the expression (4 + i) / (3 - 2i).
10/13 + 11i/13
12/13 + i
10/13 - 11i/13
12/13 - i
Tags
CCSS.HSN.CN.A.3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying (2 - 3i) by its conjugate?
1
-1
13
-13
Tags
CCSS.HSN.CN.C.8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rationalize the denominator and simplify the expression (5 - 4i) / (2i).
2 + 2.5i
-2 + 2.5i
-2 - 2.5i
2 - 2.5i
Tags
CCSS.HSN.CN.A.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the conjugate of the complex number -3 + (4/5)i.
-3 - (4/5)i
3 - (4/5)i
3 + (4/5)i
-3 + (4/5)i
Tags
CCSS.HSN.CN.A.3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rationalize the denominator of the expression (6 - i) / (1 + i) and express in standard form.
5 - 7i/2
5 + 7i/2
3 - 5i/2
3 + 5i/2
Tags
CCSS.HSN.CN.A.3
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