Limit Sin Ln 40A581
1. **Problem statement:** Calculate the limit $$\lim_{x \to 0^+} (\sin x \cdot \ln x)$$ where $x$ approaches $0$ from the right (since $\ln x$ is defined only for $x>0$).
2. **Recall the behavior of functions near 0:**
- $\sin x \approx x$ when $x \to 0$.
- $\ln x \to -\infty$ as $x \to 0^+$.
3. **Rewrite the expression using the approximation:**
$$\sin x \cdot \ln x \approx x \cdot \ln x$$
4. **Evaluate the limit of $x \ln x$ as $x \to 0^+$:**
Use substitution or known limit:
$$\lim_{x \to 0^+} x \ln x = 0$$
This is because $\ln x$ tends to $-\infty$ but $x$ tends to $0$ faster, making the product tend to $0$.
5. **Conclusion:**
Therefore,
$$\lim_{x \to 0^+} (\sin x \cdot \ln x) = 0$$
**Final answer:** $0$