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If z=|(1+i, 5+2i, 3-2i),(7i, -3i, 5i),(1...

If `z=|(1+i, 5+2i, 3-2i),(7i, -3i, 5i),(1-i, 5-2i, 3+2i)|` then (A) z is purely real imaginary (B) z is purely real (C) z has equal real and imaginary parts (D) z has positive real and imaginary parts.

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