Show that [x^a/x^6]a^2+ab+b^2×(x^b/x^c)b^2+bc+c^2×(x^c/x^a)c^2+ac+a^2=1

Show that [x^a/x^6]a^2+ab+b^2×(x^b/x^c)b^2+bc+c^2×(x^c/x^a)c^2+ac+a^

1.	Show that [x^a/x^6]a^2+ab+b^2×(x^b/x^c)b^2+bc+c^2×(x^c/x^a)c^2+ac+a^2=1
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