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Complex Numbers: Modulus & Argument

Authored by Enkela Mezini

Mathematics

12th Grade

CCSS covered

Used 15+ times

Complex Numbers: Modulus & Argument
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7 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Modulus of complex number  1 +j3  =1\ +j\sqrt{3}\ \ =  

 11  

 00  

 22  

 2\sqrt{2}  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Modulus of complex number  1 +j3  =-1\ +j\sqrt{3}\ \ =  

 11  

 2-2  

 22  

 2\sqrt{2}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Modulus of complex number  12 32 i =\frac{1}{2}\ -\frac{\sqrt{3}}{2}\ i\ =  

 11  

 2-2  

 22  

 2\sqrt{2}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Argument of complex number   1  j =1\ -\ j\ =  

 π4\frac{\pi}{4}  

 π4\frac{-\pi}{4}  

 3π4\frac{3\pi}{4}  

 3π4\frac{-3\pi}{4}  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Argument of complex number   1  j =-1\ -\ j\ =  

 π4\frac{\pi}{4}  

 π4\frac{-\pi}{4}  

 3π4\frac{3\pi}{4}  

 3π4\frac{-3\pi}{4}  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Argument of complex number   12+j12  =-\frac{1}{2}+j\frac{1}{2}\ \ =  

 π4\frac{\pi}{4}  

 π4\frac{-\pi}{4}  

 3π4\frac{3\pi}{4}  

 3π4\frac{-3\pi}{4}  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Let w=-√3/2 + j1/2 calculate the modulus and argument.

3, 120o

5, 270o

1, 150o

Not Possible

Tags

CCSS.HSN.CN.B.4

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