Easy
If $G(x) = -\sqrt{25-x^{2}}$,then $\lim _{x \rightarrow 1} \frac{G(x)-G(1)}{x-1}$ is
- A$\frac{1}{24}$
- B$\frac{1}{5}$
- C$\frac{1}{\sqrt{24}}$
- DNone of these
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