1003082307

SubArea: 
Complex numbers in algebraic and polar form
Level: 
C
Project ID: 
1003082307
Source Problem: 
2010013107
Accepted: 
1
Clonable: 
0
Easy: 
0
Let z1=x2+9yi−20i and z2=7x−12+y2i. Find all [x;y]∈R×R such that z1=z2.
[x;y]∈{[3;4],[3;5],[4;4],[4;5]}
[x;y]∈{[4;3],[4;4],[5;3],[5;4]}
[x;y]∈{[−3;−4],[−3;−5],[−4;−4],[−4;−5]}
[x;y]∈{[−4;−3],[−4;−4],[−5;−3],[−5;−4]}