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If a + b + c = 0, then prove the following(a) (b + c) (b − c) + a(a + 2b) = 0(b) a(a2 − bc) + b(b2 − ca) + c(c2 − ab) = 0(c) a(b2 + c2) + b(c2 + a2) + c(a2 + b2) = −3abc(d) |
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Answer» If a + b + c = 0, then prove the following (a) (b + c) (b − c) + a(a + 2b) = 0 (b) a(a2 − bc) + b(b2 − ca) + c(c2 − ab) = 0 (c) a(b2 + c2) + b(c2 + a2) + c(a2 + b2) = −3abc (d) |
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