MCQOPTIONS
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| 1. |
\[\frac{d}{dx}(\log \tan x)=\] [MNR 1986] |
| A. | \[2\sec 2x\] |
| B. | \[2\,\text{cosec }2x\] |
| C. | \[\sec 2x\] |
| D. | \[\text{cosec}\,2x\] |
| Answer» C. \[\sec 2x\] | |