Find all complex numbers 
such that 
.
Write your solutions in 
form, separated by commas. So, "1+2i, 3-i" is an acceptable answer format, but "2i+1; -i+3" is not. (Don't include quotes in your answer.)
Note: This problem is not about functions.
+33658 Write z = (a + ib), then z2 = a2 - b2 +2abi
For this to equal 2i we must have
a2 - b2 = 0 and ab = 1
There are four solution sets for these: a = 1, b = 1; a = -1, b= -1; a = i, b=-i; a = -i, b = i.
These give rise to just two different solutions:
1 + i and -1 - i
.
