1. The problem statement, all variables and given/known data Find the limit of a complex number involving infinity. 2. Relevant equations Lim z->infiity of (8z^3+5z+2) 3. The attempt at a solution I tried to split the problem into real and imaginary parts using z = x+iy, but I don't know how to deal with the z->infinity. Thanks!
I could be misreading the problem, but the real part and imaginary part of that equation will go to infinity as well no matter which you take.
Thanks, Dick. I was about to ask exactly what "z-> infinity" meant! In the complex plane there can be an infinite number of "infinities"!