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1. $f (x) = x^{3} - x^{2} - x - \frac{1}{8}$

Answer: Option A

Explanation:

f (- \frac{1}{2}) = {(- \frac{1}{2})}^{3} - {(- \frac{1}{2})}^{2} - (- \frac{1}{2}) - \frac{1}{8} = - \frac{1}{8} - \frac{1}{4} + \frac{1}{2} - \frac{1}{8} = \frac{- 1 - 2 + 4 - 1}{8} = \frac{4 - 4}{8} = 0 (A n s)

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