The minimum value of \( f(x)=x^{4}-x^{2}-2 x+6 \) is
(a) 6
(b) 4
(c...
The minimum value of \( f(x)=x^{4}-x^{2}-2 x+6 \) is
(a) 6
(b) 4
(c) 8
(d) none of these
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