If "x" is positive, "-x" is negative; if "x" is negative, "-x" is positive. Similarly, "x-1" can be positive or negative, depending on the exact value of "x".
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It is a positive reciprocal. x-a = 1/xa or equivalently, (1/x)a
It is a positive reciprocal. x-a = 1/xa or equivalently, (1/x)a
a negative number plus a negative number is negative. here is a proof.(-x)+(-x)(-1)x+(-1)x-1(x+x)-1(2x)-2xa negative number times a negative number is positive though.
Let X = *positive number 1* Let Y = *positive number 2* X times Y
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