正方体ABCD—A1B1C1D1的棱长为1,P是面对角线BC1上一动点,Q是底面ABCD上一动点,则D1P+PQ的最小值等于?请给出适当过程
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![正方体ABCD—A1B1C1D1的棱长为1,P是面对角线BC1上一动点,Q是底面ABCD上一动点,则D1P+PQ的最小值等于?请给出适当过程](/uploads/image/z/3486333-21-3.jpg?t=%E6%AD%A3%E6%96%B9%E4%BD%93ABCD%E2%80%94A1B1C1D1%E7%9A%84%E6%A3%B1%E9%95%BF%E4%B8%BA1%2CP%E6%98%AF%E9%9D%A2%E5%AF%B9%E8%A7%92%E7%BA%BFBC1%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2CQ%E6%98%AF%E5%BA%95%E9%9D%A2ABCD%E4%B8%8A%E4%B8%80%E5%8A%A8%E7%82%B9%2C%E5%88%99D1P%EF%BC%8BPQ%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E7%AD%89%E4%BA%8E%3F%E8%AF%B7%E7%BB%99%E5%87%BA%E9%80%82%E5%BD%93%E8%BF%87%E7%A8%8B)
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