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if (2z-n)/(2z+n)=2i-1,n in N in N and IM...

if `(2z-n)/(2z+n)=2i-1,n in N in N` and `IM(z)=10`, 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

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The correct Answer is:
B
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