Question

if Z1 lies on |Z|=1 and Z2 lies on |Z|=2,then
A)
$3 \leqslant |z1 - 2z2| \leqslant 5$
B)
$1 \leqslant |z1 + z2| \leqslant 3$
C)
$|z1 - 3z2| \geqslant 5$
D)
$|z1 - z2| \geqslant 1$



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Answer 1

Answer:

not able to understand ok