SOLUTION: Is the product of 2 imaginary numbers a real number always, never or sometimes?

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Question 833528: Is the product of 2 imaginary numbers a real number always, never or sometimes?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Is the product of 2 imaginary numbers a real number always, never or sometimes?
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Example: ai*bi = abi^2 = -ab
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Answer: Always
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Cheers,
Stan H.
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