Squares Inequality

Show that $b^{2} c^{2} + c^{2} a^{2} + a^{2} b^{2} > ab c (a + b + c)$ .

~8 minProof · checked by AIInequalitiesSum of Squares

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XIX. Inequalities, Examples XIX.a, No. 11

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