Saved Bookmarks
| 1. |
, If , b, c are all non-zero and a + b + c 0,then prove that+3.bc ca ab |
|
Answer» When a + b + c = 0 then a³ + b³ + c³ = 3abc Divide by abc (a³ + b³ + c³) = 3abc ----------------- ---------- abc abc a² b² c²------ + ------ + ------- = 3 bc ac ab |
|