作者Qmmm (Q蛆蛆)
看板trans_math
標題[微分] Real Root(s)
時間Sat Sep 13 12:07:48 2008
4
How many real root(s) does the equation x + 4x+ 1= 0 have ?
(1) at least 1 ;
(2) at least 2 ;
(3) at least 3 ;
(4) at least 4 ;
請問這題該怎麼算呢？謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 202.151.60.49