Let \[f(x)=\sqrt{x-1}+\sqrt{x+24-10\sqrt{x-1}};\] \[1

1.	Let \[f(x)=\sqrt{x-1}+\sqrt{x+24-10\sqrt{x-1}};\] \[1
A.	0
B.	\[\frac{1}{\sqrt{x-1}}\]
C.	\[2\sqrt{x-1}-5\]
D.	None of these
Answer» B. \[\frac{1}{\sqrt{x-1}}\]

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Let \[f(x)=\sqrt{x-1}+\sqrt{x+24-10\sqrt{x-1}};\] \[1

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