A problem by Edward Walters

Level 1

What is the square root of -1?

1 -1 0 None of the rest

Edward Walters by Edward Walters , 27, United Kingdom

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1 solution

Michael Mendrin
Jul 27, 2015

I don't think "N/A" is the appropriate answer for this one. N/A means "not available" or "not applicable", when the imaginary number i i is defined to be the square root of negative one. Maybe you mean, "none of the other answers"?

7 Helpful 0 Interesting 0 Brilliant 0 Confused

Yes, I do, thank you! If i put i it would have been obvious that it was the answer, so put N/A/ because i couldn't think of anything else.

Edward Walters - 5 years, 10 months ago

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If you wanted to throw off your solvers, you can say "no single answer". This is because both i i and − i -i are legitimate answers to that one.

Michael Mendrin - 5 years, 10 months ago

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Thanks. I've updated the answer to "none of the rest".

Calvin Lin Staff - 5 years, 10 months ago

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