1.

Let z ∈ C with Im(z) = 10 and it satisfies \(\frac{{2z - n}}{{2z + n}} = 2i - 1\) for some natural number n. Then:

A. n = 20 and Re(z) = -10
B. n = 40 and Re(z) = 10
C. n = 40 and Re(z) = -10
D. n = 20 and Re(z) = 10
Answer» D. n = 20 and Re(z) = 10


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