MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
| 1. |
If (u= frac{e^{x+y}}{e^x-e^y} ), what is ( frac{ partial u}{ partial x}+ frac{ partial u}{ partial y} )? |
| A. | ( frac{2((e^x-e^y) e^{x+y})-(e^{x+y}) (e^x+e^y)}{(e^x-e^y)^2} ) |
| B. | ( frac{2((e^x-e^y) e^{x+y})-(e^{x+y}) (e^x+e^y)}{(e^x+e^y)^2} ) |
| C. | ( frac{2((e^x-e^y) e^{x+y})-(e^{x+y}) (e^x-e^y)}{(e^x-e^y)^2} ) |
| D. | u |
| Answer» B. ( frac{2((e^x-e^y) e^{x+y})-(e^{x+y}) (e^x+e^y)}{(e^x+e^y)^2} ) | |