In Problem, try to fill in the blanks without referring back to the text.
If z ≠ 0 is a real number, then z + z−1 is real. Other complex numbers z = x + iy for which z + z−1 is real are defined by |z| = ______.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.