MCQ
$y =\log _{10}$ હોય તો $\frac{ dy }{ dx }=\ldots \ldots . .$.
- A$\cot x$
- B$\cot x \cdot \log _e 10$
- ✓$\cot x \cdot \log _{10} e$
- D$\log _{10} \cot x$
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