Saved Bookmarks
| 1. |
Tan3x - tan2x - Tanx = 0 . Solve the equation |
|
Answer» \xa0It is wrong because we can\'t write tan3x = tan2x + tanx\xa0\xa0The and of this question is\xa0Tan(2x+x) = tan2 tan 3x = tan 2x + tan xtan (2x + x) = tan 2x + tan x(tan 2x + tan x)/(1 - tan 2x.tanx x) = tan 2x + tan x1 - tan 2x.tanx = 1tan 2x. tan x = 0tan 2x = 0 and tan x = 0tan 2x = tan 0o and tan x = tan 0o2x =\xa00o and x = 0ox = 0o and x = 0o |
|