randFromArray([1,-1])
NEG1 === -1 ? "-" : ""
randRange(1, 8)
randRange(2, 9)
randFromArray([1, -1])
NEG2 === -1 ? "-" : ""
randRange(1, 8)
randRange(2, 9)
\displaystyle NEG1S \frac{A}{B} \cdot NEG2S \frac{C}{D}
(NEG1 * A * NEG2 * C) / (B * D)
\displaystyle {} = \frac{NEG1 * A \cdot NEG2 * C}{B \cdot D}
\displaystyle {} = \frac{NEG1 * A * NEG2 * C}{B * D}
\displaystyle {} = fractionReduce(NEG1 * A * NEG2 * C, B * D)
(sulge)
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