→ mp8113f:<s,u> = <u,t> = 0 <s+t,u> = <s,u> + <t,u> =0 01/22 00:30
→ mp8113f:Pu時 取s=t (B)false Ps有機會射到u上 (C) false 01/22 00:31
→ mp8113f:5. 我選D 01/22 00:31
→ mp8113f:M is inner space 若在此空間中定義函數 稱函數內積 01/22 00:32
→ mp8113f:<cu,cu> = c*c <u,u> (B)false 01/22 00:33
→ mp8113f:(v^T)Tu = (v^T)(T^T)(u) 得 T=T^T 在此條件下成立 01/22 00:36
→ mp8113f:not every linear operator皆成立 (C)false (D)True 01/22 00:37
→ mp8113f:6.我選AD 01/22 00:38
→ hsnulight:6-AD 01/22 11:56
→ hsnulight:5-D 01/22 12:01
→ hsnulight:5.(A) 拿2維向量想 取s(1,0) u(0,1) t(100,0) -> F 01/22 12:03
→ howard852:原來是這樣推的! 感謝兩位!! 01/24 11:05