MCQ
જો $\frac{1}{x-4}<0, x \in \mathrm{R}$ હોય તો $x \in$
- ✓$(-\infty, 4)$
- B$(4, \infty)$
- C$\mathrm{R}$
- D$\phi$
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$ = \tan \alpha \tan \beta \tan \gamma $, તો $(\sec \alpha - \tan \alpha )(\sec \beta - \tan \beta )$$(\sec \gamma - \tan \gamma ) = $