Encyclopedia > I Ching hexagram 12

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I Ching hexagram 12

I Ching hexagram 12, depicted :::||| is named 否 (pi3), Obstruction.

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... is 4a2. We get <math>\left(x+\frac{b}{2a}\right)^2=\frac{-4ac+b^2}{4a^2}=\frac{b^2-4ac}{4a^2}.</math> Taking square roots of both ...