2xay10ax2y的精選

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已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲       A.2           ...

已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲       A.2           ...

2022-08-07
問題詳情:已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲       A.2              B.0              C.R               D.不存在【回答】B知識點:點直線平面之間的位置題...
已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲                     ...

已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲                     ...

2021-08-03
問題詳情:已知直線:2x+ay+1=0,:ax+2y-2=0,若⊥,則a的值爲                                   A.0                    B. 2           C.任意實數 ...