MCQOPTIONS
Saved Bookmarks
| 1. |
If\[{{x}^{3}}+{{y}^{3}}+{{z}^{3}}-3xyz=k(x+y+z)\] \[\{{{(x-y)}^{2}}+{{(y-z)}^{2}}+{{(z-x)}^{2}}\}\], find\[k\]. |
| A. | \[1\] |
| B. | \[\frac{1}{4}\] |
| C. | \[\frac{1}{2}\] |
| D. | \[\frac{1}{3}\] |
| Answer» D. \[\frac{1}{3}\] | |