A) \[\frac{f(x)}{\log f(x)}+c\]
B) \[f(x).\log f(x)+c\]
C) \[\log [\log f(x)]+c\]
D) \[\frac{1}{\log [\log f(x)]}+c\]
E) \[\frac{\log f(x)}{f(x)}+c\]
Correct Answer: C
Solution :
Let\[I=\int{\frac{f(x)}{f(x)\log [f(x)]}}dx\] \[=\log [\log f(x)]+c\]
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