已知直线C1;x=1+tcosa,y=tsina,(t为参数),圆C2:x=cosQ,y=sinQ(Q为参数) 问过坐标原点O做C1的垂线,垂足为A,放a变化时,求A点轨迹的普通方程
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![已知直线C1;x=1+tcosa,y=tsina,(t为参数),圆C2:x=cosQ,y=sinQ(Q为参数) 问过坐标原点O做C1的垂线,垂足为A,放a变化时,求A点轨迹的普通方程](/uploads/image/z/5060201-41-1.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFC1%3Bx%3D1%2Btcosa%2Cy%3Dtsina%2C%28t%E4%B8%BA%E5%8F%82%E6%95%B0%EF%BC%89%2C%E5%9C%86C2%EF%BC%9Ax%3DcosQ%2Cy%3DsinQ%EF%BC%88Q%E4%B8%BA%E5%8F%82%E6%95%B0%EF%BC%89+%E9%97%AE%E8%BF%87%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9O%E5%81%9AC1%E7%9A%84%E5%9E%82%E7%BA%BF%2C%E5%9E%82%E8%B6%B3%E4%B8%BAA%2C%E6%94%BEa%E5%8F%98%E5%8C%96%E6%97%B6%2C%E6%B1%82A%E7%82%B9%E8%BD%A8%E8%BF%B9%E7%9A%84%E6%99%AE%E9%80%9A%E6%96%B9%E7%A8%8B)
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