已知A(4,0),B(0,4),从点P(2,0)射出的光线经直线AB反向后再射到直线OB上,最后竟直线OB反射后又回到P点,则光线所经过的路程是
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![已知A(4,0),B(0,4),从点P(2,0)射出的光线经直线AB反向后再射到直线OB上,最后竟直线OB反射后又回到P点,则光线所经过的路程是](/uploads/image/z/12519838-46-8.jpg?t=%E5%B7%B2%E7%9F%A5A%EF%BC%884%2C0%EF%BC%89%2CB%EF%BC%880%2C4%EF%BC%89%2C%E4%BB%8E%E7%82%B9P%EF%BC%882%2C0%EF%BC%89%E5%B0%84%E5%87%BA%E7%9A%84%E5%85%89%E7%BA%BF%E7%BB%8F%E7%9B%B4%E7%BA%BFAB%E5%8F%8D%E5%90%91%E5%90%8E%E5%86%8D%E5%B0%84%E5%88%B0%E7%9B%B4%E7%BA%BFOB%E4%B8%8A%2C%E6%9C%80%E5%90%8E%E7%AB%9F%E7%9B%B4%E7%BA%BFOB%E5%8F%8D%E5%B0%84%E5%90%8E%E5%8F%88%E5%9B%9E%E5%88%B0P%E7%82%B9%2C%E5%88%99%E5%85%89%E7%BA%BF%E6%89%80%E7%BB%8F%E8%BF%87%E7%9A%84%E8%B7%AF%E7%A8%8B%E6%98%AF)
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