Question

If a complex number z=a+ib then the argument or amplitude of z is given by :

Answer 1

as i have already stated
\(|z|=\sqrt{a^2+b^2}\)

Answer 2

which is amplitude

Answer 3

Well the options are ... \[\tan^{-1} \frac{ a }{ b } or \tan^{-1} \frac{ b }{ a }\]

Answer 4

its the second option. b/a

Answer 5

please explain ?

Answer 6

oh, the argument will be tan inverse (b/a)

Answer 7

Explain ?

Answer 8

@nubeer @hartnn

Answer 9

i pretty much remember it as a defination...

Answer 10

yes.. its more like a formula or something pre set. that u just have to remember.

Answer 11

oh ok