Originally Posted by

**essex** Hello ,

I was solving problems on limits when i encountered this one with a complex number.

limit Z->0 (Z*/Z) WHERE Z*is conjugate of Z.

If i get 0/0 i used to factorize numerator, which almost always cancels with the denominator ,to get the answer which i could not do for this one.The problem for me is Z has two variables x and y and i dont know how to apply limits for them.I think the answer should be 'undefined' but i cant prove it mathematically.Any simple way to solve these kinds of problems?

Moreover are there any general ways of solving these limit problems?

Thank you