If \( a=-5, b=-6 \) and \( c=10 \), then the value of (IV \( \frac{a^{3}+b^{3}+c^{3}-3 a b c}{a ...

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If \( a=-5, b=-6 \) and \( c=10 \), then the value of
(IV \( \frac{a^{3}+b^{3}+c^{3}-3 a b c}{a b+b c+c a-a^{2}-b^{2}-c^{2}} \) is
(a) 0
(b) \( -1 \)
(c) 1
(d) None of these
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