[線代] 線性代數證明
設t是固定實數,並令
c=cost,s=sint,x=(c,cs,cs^2,...cs^n-1,s^n)^T
證明x是R^n+1中的單位向量
提示:1+s^2+s^4+...+s^(2n-2)=(1-s^2n)/(1-s^2)
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 122.116.67.162
推
05/05 21:36, , 1F
05/05 21:36, 1F
→
05/05 21:37, , 2F
05/05 21:37, 2F
→
05/05 21:37, , 3F
05/05 21:37, 3F
推
05/05 21:39, , 4F
05/05 21:39, 4F
→
05/05 21:40, , 5F
05/05 21:40, 5F
→
05/05 21:46, , 6F
05/05 21:46, 6F
討論串 (同標題文章)