\[\frac{d}{dx}\{\log (\sec x+\tan x)\}=\] [AISSE 1982]

\[\frac{d}{dx}\{\log (\sec x+\tan x)\}=\] �

1.	\[\frac{d}{dx}\{\log (\sec x+\tan x)\}=\] [AISSE 1982]
A.	\[\cos x\]
B.	\[\sec x\]
C.	\[\tan x\]
D.	\[\cot x\]
Answer» C. \[\tan x\]

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\[\frac{d}{dx}\{\log (\sec x+\tan x)\}=\] [AISSE 1982]

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