MCQ
$\frac{d}{d x}\left\{\log _3 x \times \log _x 3\right\}=$
- A$\frac{1}{9}$
- B9
- C$2 \log 3$
- ✓$0$
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| X | 2 | 3 | 4 | 5 |
| $P(X)$ | $\frac{5}{k}$ | $\frac{7}{k}$ | $\frac{9}{k}$ | $\frac{11}{k}$ |