Question

If `abs (("a - b - c", 2"a", 2"a"),(2"b", "b - c - a", 2"b"),(2"c", 2"c", "c - a - b")) = "k" ("a + b + c")^3,` then k is ____________.

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Answer 1

If `abs (("a - b - c", 2"a", 2"a"),(2"b", "b - c - a", 2"b"),(2"c", 2"c", "c - a - b")) = "k" ("a + b + c")^3,` then k is 1.