举一反三
- 已知向量[tex=5.643x1.286]2HKJ+34uBXu3DbhHKLrGKQ==[/tex],[tex=5.5x1.286]YxBSYjqnkOglv+HFGSt5XQ==[/tex],[tex=5.5x1.286]A94SJl+klKm/VJjddX9d+A==[/tex],求:(1)[tex=6.786x1.286]TkoPO9ooAPZE8kDX0Ksl4/ZY708Rsy7drjUyImg7U8k=[/tex];(2)[tex=4.071x1.286]wLCgIV9Inyr6HA4KUwzc3o8dW+QaqtN8Vh4Ic4T9aKo=[/tex];(3)[tex=4.571x1.286]wLCgIV9Inyr6HA4KUwzc3oQ8chRS+v5X/lEvFUZAFCU=[/tex];(4)[tex=6.857x1.286]+8TpnXhNjVA8ASM37C57bPO2VHJACzhdrkBhWbOw8pepTAtBRrxQ67nhgbDgIjYW[/tex].
- 已知向量[tex=5.643x1.286]2HKJ+34uBXu3DbhHKLrGKQ==[/tex],[tex=5.5x1.286]YxBSYjqnkOglv+HFGSt5XQ==[/tex],[tex=5.5x1.286]A94SJl+klKm/VJjddX9d+A==[/tex],求:[tex=6.857x1.286]+8TpnXhNjVA8ASM37C57bPO2VHJACzhdrkBhWbOw8pepTAtBRrxQ67nhgbDgIjYW[/tex] .
- 已知向量[tex=5.643x1.286]2HKJ+34uBXu3DbhHKLrGKQ==[/tex],[tex=5.5x1.286]YxBSYjqnkOglv+HFGSt5XQ==[/tex],[tex=5.5x1.286]A94SJl+klKm/VJjddX9d+A==[/tex],求:[tex=4.071x1.286]wLCgIV9Inyr6HA4KUwzc3o8dW+QaqtN8Vh4Ic4T9aKo=[/tex] .
- 已知[tex=5.643x1.286]bElEMe94zU3QnY7/pA2k+w==[/tex],[tex=5.5x1.286]WVQLnm7flauRHAS8jmervw==[/tex],求:[tex=0.571x1.286]mRKL/orzOudCEARA8qn3Kw==[/tex]与[tex=0.5x1.286]PGyKeLDo0qv9T0n29ldi6w==[/tex]的夹角 .
- 设[tex=6.571x1.286]l19aK9QOFsSDpXWVCOi/dSGao2AImDxXtP5Hp3q5CRU=[/tex],[tex=5.643x1.286]PC0dT+MVZOf04OcrpkP5zA==[/tex],[tex=5.5x1.286]soHI8Jq8muFMOeLFMEQGVOhkV9FsOs22l9rC5UftnKU=[/tex],求[tex=0.5x1.286]asctJDWpGaq/ETe64ANZ1Q==[/tex]。
内容
- 0
已知[tex=5.643x1.286]bElEMe94zU3QnY7/pA2k+w==[/tex],[tex=5.5x1.286]WVQLnm7flauRHAS8jmervw==[/tex],求:[tex=0.571x1.286]mRKL/orzOudCEARA8qn3Kw==[/tex]与[tex=0.5x1.286]PGyKeLDo0qv9T0n29ldi6w==[/tex]的夹角[tex=0.5x1.286]T705PMOdgQwntG7jZdU1gQ==[/tex] .
- 1
已知3阶矩阵A与3维列向量 x 满足[tex=6.857x1.357]zd0nq0IiNsY0hFTyLJHQy4eC+A8zUY14VqChcVve0aM=[/tex],且向量组[tex=0.714x0.786]Qp78QkdFrqytlOsANWrP9w==[/tex],[tex=3.5x1.429]c2YtesCJSYo0KOSy0rMECg==[/tex] (1)记[tex=10.643x1.357]3tyZrBE07WCx0ZFK2Y3aVjbjYUrJ/5Q0lIjkUE1dgc8=[/tex],求三阶矩阵B,使AP= PB;(2)求[tex=1.357x1.357]0awZUhfhOcjHk6LSkdT6Gw==[/tex]
- 2
视x为自变量,求[tex=4.214x1.214]/bMzoNPkMGqIXVfV4w5BWlrtx0+Qy7c7KcmvJOMVjrw=[/tex]指定阶的微分[tex=1.5x1.429]ah+rq38CvvKHjb7z4cltHHiylvGXb7B45Yp8K9Db/34=[/tex]
- 3
设[tex=4.857x1.286]nmADzqy3aGZnZC9XqgAcnA==[/tex],[tex=5.5x1.286]Hah/w62YZnQ/EdFt7gd21Q==[/tex],[tex=6.286x1.286]HPHfYbQ0x/VIYMne9TUDDU7ZcVEfyPQMBbqBf3Bbovc=[/tex],求向量的坐标:[tex=4.286x1.286]2+1ezwM4TDFBO667ZPTXxw==[/tex] .
- 4
求平行于向量 [tex=5.429x1.357]x/6iEXip+O1XKxx+AJCEK+iJDnwWTs6vrfapGMpSAys=[/tex] 的单位向量.