Complex Numbers

Complex Numbers

12th Grade

13 Qs

quiz-placeholder

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Complex Numbers

Complex Numbers

Assessment

Quiz

Mathematics

12th Grade

Medium

Created by

Katie Lilley

Used 7+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 u=4i  and v =2+3iu=4-i\ \ and\ v\ =-2+3i  
Find u - v

 64i6-4i  

 2+2i2+2i  

 6+2i6+2i  

 24i2-4i  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write 16i in polar form

16cis016cis0

16cisπ16cis\pi

16cis π216cis\ \frac{\pi}{2}

16icisπ16icis\pi

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

write -8 in polar form

8cis0-8cis0

8cisπ-8cis\pi

8cisπ8cis\pi

8cis08cis0

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write 3i-3i  in Polar form

 3cisπ-3cis\pi  

 3cis 3π23cis\ \frac{3\pi}{2}  

 3cis 3π2-3cis\ \frac{3\pi}{2}  

 3cisπ3cis\pi  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Write  4cis04cis0  in rectangular form

 44  

 4i4i  

 4-4  

 4i-4i  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify b4cis(3a2)bcis(a2)\frac{b^4cis\left(3a^2\right)}{bcis\left(a^2\right)}  

 4bcis(3a2)4bcis\left(3a^2\right)  

 b5cis(2a2)b^5cis\left(2a^2\right)  

 b3cis(2a2)b^3cis\left(2a^2\right)  

 b3cis(4a3)b^3cis\left(4a^3\right)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The complex Number  u=52iu=5-2i  

Re(u) is 

 2-2  

 55  

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