高中数学题已知圆的方程x^2+y^2-4xcosθ-2ysinθ+3cos^2θ=0(θ为参数),那么圆心的轨迹的普通方程为已知圆的方程x^2+y^2-4xcosθ-2ysinθ+3cos^2θ=0(θ为参数),那么圆心的轨迹的普通方程为
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![高中数学题已知圆的方程x^2+y^2-4xcosθ-2ysinθ+3cos^2θ=0(θ为参数),那么圆心的轨迹的普通方程为已知圆的方程x^2+y^2-4xcosθ-2ysinθ+3cos^2θ=0(θ为参数),那么圆心的轨迹的普通方程为](/uploads/image/z/3139768-64-8.jpg?t=%E9%AB%98%E4%B8%AD%E6%95%B0%E5%AD%A6%E9%A2%98%E5%B7%B2%E7%9F%A5%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8Bx%5E2%2By%5E2-4xcos%CE%B8-2ysin%CE%B8%2B3cos%5E2%CE%B8%3D0%28%CE%B8%E4%B8%BA%E5%8F%82%E6%95%B0%29%2C%E9%82%A3%E4%B9%88%E5%9C%86%E5%BF%83%E7%9A%84%E8%BD%A8%E8%BF%B9%E7%9A%84%E6%99%AE%E9%80%9A%E6%96%B9%E7%A8%8B%E4%B8%BA%E5%B7%B2%E7%9F%A5%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8Bx%5E2%2By%5E2-4xcos%CE%B8-2ysin%CE%B8%2B3cos%5E2%CE%B8%3D0%28%CE%B8%E4%B8%BA%E5%8F%82%E6%95%B0%29%2C%E9%82%A3%E4%B9%88%E5%9C%86%E5%BF%83%E7%9A%84%E8%BD%A8%E8%BF%B9%E7%9A%84%E6%99%AE%E9%80%9A%E6%96%B9%E7%A8%8B%E4%B8%BA)
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