如图,长方体ABCD-A1B1C1D1中,AA1=根号2,AB=1,AD=m,E为BC中点,且∠AEA1恰为二面角A1-ED-A的平面角.(1)求证:平面A1DE⊥平面A1AE(2)求三棱锥E-ADA1的体积
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![如图,长方体ABCD-A1B1C1D1中,AA1=根号2,AB=1,AD=m,E为BC中点,且∠AEA1恰为二面角A1-ED-A的平面角.(1)求证:平面A1DE⊥平面A1AE(2)求三棱锥E-ADA1的体积](/uploads/image/z/8901767-47-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E9%95%BF%E6%96%B9%E4%BD%93ABCD-A1B1C1D1%E4%B8%AD%2CAA1%3D%E6%A0%B9%E5%8F%B72%2CAB%3D1%2CAD%3Dm%2CE%E4%B8%BABC%E4%B8%AD%E7%82%B9%2C%E4%B8%94%E2%88%A0AEA1%E6%81%B0%E4%B8%BA%E4%BA%8C%E9%9D%A2%E8%A7%92A1-ED-A%E7%9A%84%E5%B9%B3%E9%9D%A2%E8%A7%92.%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9A%E5%B9%B3%E9%9D%A2A1DE%E2%8A%A5%E5%B9%B3%E9%9D%A2A1AE%EF%BC%882%EF%BC%89%E6%B1%82%E4%B8%89%E6%A3%B1%E9%94%A5E-ADA1%E7%9A%84%E4%BD%93%E7%A7%AF)
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