SOLUTION: prove that Re(Z1Z2)=Re(Z1)Re(Z2)

Question 1176964: prove that Re(Z1Z2)=Re(Z1)Re(Z2)
Answer by ikleyn(52879)   (Show Source): You can put this solution on YOUR website!
.

This identity is INCORRECT.

It is WRONG, and THEREFORE, it can not be proved.

It only can be DISPROVED.

            To disprove, take   Z1 = i,   Z2 = -i.

Then the left side of your formula is equal to 1, while the right side is equal to 0.     Contradiction (!)

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From which garbage box did you recover this "problem" ?

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