若直线xcosΘ+ysinΘ=2(0≤Θ≤π)与椭圆x2+3y2=6有公共点,则Θ的取值范围(A[ 0,π ]B[ 0,π/4]C[3π/4,π]D[ 0,π/4]∪[3π/4,π]
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![若直线xcosΘ+ysinΘ=2(0≤Θ≤π)与椭圆x2+3y2=6有公共点,则Θ的取值范围(A[ 0,π ]B[ 0,π/4]C[3π/4,π]D[ 0,π/4]∪[3π/4,π]](/uploads/image/z/11362646-38-6.jpg?t=%E8%8B%A5%E7%9B%B4%E7%BA%BFxcos%CE%98%2Bysin%CE%98%3D2%EF%BC%880%E2%89%A4%CE%98%E2%89%A4%CF%80%EF%BC%89%E4%B8%8E%E6%A4%AD%E5%9C%86x2%2B3y2%3D6%E6%9C%89%E5%85%AC%E5%85%B1%E7%82%B9%2C%E5%88%99%CE%98%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%88A%5B+0%2C%CF%80+%5DB%5B+0%2C%CF%80%EF%BC%8F4%5DC%5B3%CF%80%EF%BC%8F4%2C%CF%80%5DD%5B+0%2C%CF%80%EF%BC%8F4%5D%E2%88%AA%5B3%CF%80%EF%BC%8F4%2C%CF%80%5D)
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