1. ## General question

Hello every body
Please let me know is the additive identity (0,0) means neutral member of sum operation in complex number ? And if yes why we should write identity additive because of identity mean ??
Thanks

2. ## Re: General question

And please say , what z^-1 called ? I know this is multiplicative inverse but is there any fastest way to called it ? For example for x^2 we should say x to the power of two but fastest way to say is x square !
Thanks again