Ts EamcetDifferentiationTS EAMCET 2022 (Online) 19th July Evening ShiftMCQ+1 / -02022If $f(x)=\frac{1+\sec x}{2(\sec x-1)}$ for $0A$\operatorname{cosec} x$B$-\operatorname{cosec} x$C$2 \operatorname{cosec} x$D$-2 \operatorname{cosec} x$Check AnswerClear SelectionReveal AnswerShow Explanation