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

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

(1)  n = 20 and Re(z) = –10

(2)  n = 40 and Re(z) = 10

(3)  n = 40 and Re(z) = –10 

(4)  n = 20 and Re(z) = 10 

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Correct option  (3) n = 40 and Re(z) = –10

Explanation:

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