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Limits Continuity and Differentiability question

2003 · Shift 0 · Q70

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PYQ Library
JEE Main
Mathematics
Limits Continuity and Differentiability
2003 · Shift 0 · Q70

Limits Continuity and Differentiability question

2003 · Shift 0 · Q70

JEE MainMathematicsLimits Continuity and DifferentiabilityMCQ+4 / −1

If

\mathop {\lim }\limits_{x \to 0} {{\log \left( {3 + x} \right) - \log \left( {3 - x} \right)} \over x}

= k, the value of k is

A
$- {2 \over 3}$
B
0
C
$- {1 \over 3}$
D
${2 \over 3}$

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