Let S={z=x+iy:\frac{2z-3i}{4z+2i} is a real number }. Then which of the following is NOT correct?
Held on 10 Apr 2023 · Verified 6 Jul 2026.
y+x2+y2=−41
(x,y)=(0,−21)
x=0
y∈(−∞,−21)∪(−21,∞)
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