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Exam (elaborations)

self quiz unit 8 college algebra

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2022/2023 Written for academic year
Institution University Of The People
Module Math 1201
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This course provides a solid grounding in algebra, trigonometry, and analytic geometry in preparation for further mathematical studies

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Firefox https://my.uopeople.edu/mod/quiz/review.php?attempt=8933019&cmi...




Started on Wednesday, 26 October 2022, 12:51 PM
State Finished
Completed on Wednesday, 26 October 2022, 1:25 PM
Time taken 33 mins 53 secs
Marks 5.00/5.00
Grade 10.00 out of 10.00 (100%)


Question 1
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Use DeMoivre’s theorem to find 161/4. Express your answer in complex form.



Select one:
a. 2, – 2

b. 2 cis (π/2), 2 cis (3π/2)

c. 2, 2 cis (π/2), – 2, 2 cis (3π/2) 

d. 2, 2 cis (2), – 2, – 2 cis (2)

e. None of these



Your answer is correct.




Question 2
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What is the amplitude of y = 4 sin (2x – π/4)?



Select one:
a. 0

b. 2

c. π

d. 4 

e. π/4



Your answer is correct.




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26-Oct-22, 1:27 PM

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