Question

find the modulus and argument of the following complex number and express each of them in the polar form 1/1+i​

Answer 1

1−i=  

2

​  

(  

2

​  

 

1

​  

−  

2

​  

 

i

​  

)=  

2

​  

(cos  

4

7π

​  

+isin  

4

7π

​  

)=  

2

​  

e  

i  

4

7π

​  

 

 

Modulus and argument of 1−i is  

2

​  

 and  

4

7π  respectively

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