1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
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If $$f(x) = {\log _5}{\log _3}x$$, then f'(e) is equal to
A
$$e{\log _e}5$$
B
$$e{\log _e}3$$
C
$${1 \over {e{{\log }_e}5}}$$
D
$${1 \over {e{{\log }_e}3}}$$
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