\( \lim _{x \rightarrow 0} \frac{\log (3+x)-\log (3-x)}{x}=k \) (A) \( -2 / 3 \) (B) 0 (C) \( -1...

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\( \lim _{x \rightarrow 0} \frac{\log (3+x)-\log (3-x)}{x}=k \)
(A) \( -2 / 3 \)
(B) 0
(C) \( -1 / 3 \)
(D) \( 2 / 3 \)
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