MCQOPTIONS
Saved Bookmarks
| 1. |
The inverse of \[f(x)=\frac{2}{3}\frac{{{10}^{x}}-{{10}^{-x}}}{{{10}^{x}}+{{10}^{-x}}}\] is |
| A. | \[\frac{1}{3}{{\log }_{10}}\frac{1+x}{1-x}\] |
| B. | \[\frac{1}{2}{{\log }_{10}}\frac{2+3x}{2-3x}\] |
| C. | \[\frac{1}{3}{{\log }_{10}}\frac{2+3x}{2-3x}\] |
| D. | \[\frac{1}{6}{{\log }_{10}}\frac{2-3x}{2+3x}\] |
| Answer» C. \[\frac{1}{3}{{\log }_{10}}\frac{2+3x}{2-3x}\] | |