Can anyone explain in words why minus one times minus one equals plus one please?
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Can anyone explain in words why minus one times minus one equals plus one please?
Maybe this will help you understand:Quote:
Originally Posted by Hamilton Smythe
Negative and non-negative numbers - Wikipedia, the free encyclopedia
Here's a way to experience it: If you film yourself walking backwards, and then play the movie backwards, you'll watch yourself walking forward (and a bit awkwardly...). In the process, you multiplied your (forward) speed by -1 two times.Quote:
Originally Posted by Hamilton Smythe