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Attempt following question by selecting a choice to answer.
f
Use Rolle's Theorem to determine the value of c such that f ′ (c) = 0, if f(x) = x2 - 1 in the interval [- 1, 1].
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A.  f- 2
B.  f2
C.  f1
D.  f0
E.  f- 1

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