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| 1. |
The area bounded by the x-axis, the curve \[y=f(x)\], and the lines x = 1, x = b is equal to\[\sqrt{{{b}^{2}}+1}-\sqrt{2}\] for all b > l, then f(x) is |
| A. | \[\sqrt{x-1}\] |
| B. | \[\sqrt{x+1}\] |
| C. | \[\sqrt{{{x}^{2}}+1}\] |
| D. | \[\frac{x}{\sqrt{1+{{x}^{2}}}}\] |
| Answer» E. | |