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If z = |{:(1 , 1 + 2i, - 5i),(1 - 2i,-3,...

If z = `|{:(1 , 1 + 2i, - 5i),(1 - 2i,-3,5+3i),(5i,5-3i,7):}|`, then `(i= sqrt(-1))`

A

z is purely real

B

z is purely imaginary

C

`z + barz = 0`

D

`(z - barz)` i is purely imaginary

Text Solution

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The correct Answer is:
A
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