直三棱柱ABC-A1B1C1中 AC=BC=1 ∠ACB=90°AA1=根号2 D是A1B1的中点 (1)求证:C1D⊥平面AA1B1B (2)当点F直三棱柱ABC-A1B1C1中 AC=BC=1 ∠ACB=90°AA1=根号2 D是A1B1的中点(1)求证:C1D⊥平面AA1B1B(2)当点F在BB1上什
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![直三棱柱ABC-A1B1C1中 AC=BC=1 ∠ACB=90°AA1=根号2 D是A1B1的中点 (1)求证:C1D⊥平面AA1B1B (2)当点F直三棱柱ABC-A1B1C1中 AC=BC=1 ∠ACB=90°AA1=根号2 D是A1B1的中点(1)求证:C1D⊥平面AA1B1B(2)当点F在BB1上什](/uploads/image/z/3708634-58-4.jpg?t=%E7%9B%B4%E4%B8%89%E6%A3%B1%E6%9F%B1ABC-A1B1C1%E4%B8%AD+AC%3DBC%3D1+%E2%88%A0ACB%3D90%C2%B0AA1%3D%E6%A0%B9%E5%8F%B72+D%E6%98%AFA1B1%E7%9A%84%E4%B8%AD%E7%82%B9+%281%29%E6%B1%82%E8%AF%81%EF%BC%9AC1D%E2%8A%A5%E5%B9%B3%E9%9D%A2AA1B1B+%EF%BC%882%EF%BC%89%E5%BD%93%E7%82%B9F%E7%9B%B4%E4%B8%89%E6%A3%B1%E6%9F%B1ABC-A1B1C1%E4%B8%AD+AC%3DBC%3D1+%E2%88%A0ACB%3D90%C2%B0AA1%3D%E6%A0%B9%E5%8F%B72+D%E6%98%AFA1B1%E7%9A%84%E4%B8%AD%E7%82%B9%281%29%E6%B1%82%E8%AF%81%EF%BC%9AC1D%E2%8A%A5%E5%B9%B3%E9%9D%A2AA1B1B%EF%BC%882%EF%BC%89%E5%BD%93%E7%82%B9F%E5%9C%A8BB1%E4%B8%8A%E4%BB%80)
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