Question

EXAMPLE 3 Find the modulus and principal argument of – 2 i.
​

Answer 1

Answer:

Hope this is helpful to you.

Please Mark as Brainlliest answer.

And,

Follow me.

Let, z=0+(−2i)

∴ mod of z=2

But, I am getting stuck over here and I am unable to find the argument as the tanα comes out to be not defined.

Any hint or help would be much appreciated.