√3/2(ac-a/4-c/4-1/2)
-√3/2(3a/4-3c/4)
-Y(ac-a/4-c/4-1/2)
+Y(3a/4-3c/4)
=
√3/2(ac-a/4-c/4-1/2)
+√3/2(3a/4-3c/4)
+Y(ac-a/4-c/4-1/2)
+Y(3a/4-3c/4)
の不変式部分
-√3/2(3a/4-3c/4)-Y(ac-a/4-c/4-1/2)=0
について,調べてみたい.
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Y(ac-a/4-c/4-1/2)=-√3/2(3a/4-3c/4)
Y=-√3/2(3a/4-3c/4)/(ac-a/4-c/4-1/2)
Y=-3√3(a-c)/(8ac-2a-2c-4)
これは(その3)に掲げた
Y=3√3(c-a)/(8ac-2a-2c-4)
と等値である.
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