Question

find the principal value of the amplitude of -1-√3i​

Answer 1

Answer:

Z=

3

+i

1+

3

i

⇒(

3

+i

1+

3

i

)(

3

−i

3

−i

)=

4

2

3

+2i

∴ Amplitude of Z is tan

−1

(

3

1

)=

6

π