5、如图:BD是⊙O的直径,E为⊙O上一点,直线AE交BD的延长线于A,BC⊥AE于点C,且∠CBE=∠DBE.(1)求证:AC是⊙O的切线;(2)若⊙O的半径为2,AE=4√2,求DE的长.
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![5、如图:BD是⊙O的直径,E为⊙O上一点,直线AE交BD的延长线于A,BC⊥AE于点C,且∠CBE=∠DBE.(1)求证:AC是⊙O的切线;(2)若⊙O的半径为2,AE=4√2,求DE的长.](/uploads/image/z/6849676-28-6.jpg?t=5%E3%80%81%E5%A6%82%E5%9B%BE%EF%BC%9ABD%E6%98%AF%E2%8A%99O%E7%9A%84%E7%9B%B4%E5%BE%84%2CE%E4%B8%BA%E2%8A%99O%E4%B8%8A%E4%B8%80%E7%82%B9%2C%E7%9B%B4%E7%BA%BFAE%E4%BA%A4BD%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8EA%2CBC%E2%8A%A5AE%E4%BA%8E%E7%82%B9C%2C%E4%B8%94%E2%88%A0CBE%3D%E2%88%A0DBE.%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9AAC%E6%98%AF%E2%8A%99O%E7%9A%84%E5%88%87%E7%BA%BF%EF%BC%9B%EF%BC%882%EF%BC%89%E8%8B%A5%E2%8A%99O%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BA2%2CAE%3D4%E2%88%9A2%2C%E6%B1%82DE%E7%9A%84%E9%95%BF.)
5、如图:BD是⊙O的直径,E为⊙O上一点,直线AE交BD的延长线于A,BC⊥AE于点C,且∠CBE=∠DBE.(1)求证:AC是⊙O的切线;(2)若⊙O的半径为2,AE=4√2,求DE的长.
5、如图:BD是⊙O的直径,E为⊙O上一点,直线AE交BD的延长线于A,BC⊥AE于点C,且∠CBE=∠DBE.
(1)求证:AC是⊙O的切线;(2)若⊙O的半径为2,AE=4√2,求DE的长.
5、如图:BD是⊙O的直径,E为⊙O上一点,直线AE交BD的延长线于A,BC⊥AE于点C,且∠CBE=∠DBE.(1)求证:AC是⊙O的切线;(2)若⊙O的半径为2,AE=4√2,求DE的长.
答案如下图,请稍等,百度传图有点慢