1.

Que from Complex Number'sIf z=2+i then (z-1)(bar(z)-5)+(bar(z)-1)(z-5) is equal to (a) 7 (b) -1 (c) 2 (d) none of these​

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ANSWER:

WELL, good question.

Step-by-step EXPLANATION:

a) 7 is the answer. I am sure.

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