a^y = a^x [1 a^(y-x)] return countTable[v]y=(m-1)x2 (m-2)x-1√a⒉-√b⒉=√〔a-b〕

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a^y = a^x [1 a^(y-x)] return countTable[v]
y=(m-1)x2 (m-2)x-1√a⒉-√b⒉=√〔a-b〕

AB=AC=3COS=1/9A(5,2)和B(-3,0)因为x=3*3*3*(-5)=-135因为AB=AC=3COS=1/9