Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 decade ago

-1 = 1 ???

-1 = (-1) ^ 3 = (-1) ^ 6/2 = [(-1) ^ 6] ^ 1/2 = 1^ 1/2 = 1 !!!

how's that? Where the truc?

6 Answers

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  • 1 decade ago
    Favorite Answer

    1 has two square roots... -1 and 1. That's how it works. Every positive number has negative and positive roots. (-1)*(-1) = 1 and (1)*(1) = 1.

  • 6 years ago

    1

  • 4 years ago

    No -1 equals -1

  • 6 years ago

    the sq root of 1 is -1 and 1

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  • Anonymous
    1 decade ago

    (-1)^3 = (-1) ^ 6/2 is false

    that rule is only when the number inside the parentheses is positive

  • 5 years ago

    eds

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