MCQ
If $\frac{x^{2}}{x-5}<0$ then $x \in$
- ✓$(-\infty, 5)$
- B$(5, \infty)$
- C$(-5,5)$
- D$\phi$
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upto $\infty=2\left(\sqrt{\frac{b}{a}}+1\right) \log _e\left(\frac{a}{b}\right)$, where $a$ and $b$ are integers with $\operatorname{gcd}(a, b)=1$, then $11 a+18 b$ is equal to ...............