(a) Show that x3 - (a2 + b2 + c2)x - 2 abc has real roots by...
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(b) Show that a2 + b2 + c2 ¥ ab + ac + be by considering B.
Let
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c a b b c 0 b c a
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b We use Theorem 7 The characteristic polynomial of B is computed by first ...View the full answer
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