[转到父目录]Image11585.gifImage11586.gifImage11587.gifImage11603.gifImage11604.gifImage11605.gifImage11606.gif中心在点(h,k)对称轴平行于坐标轴的圆锥曲线.htm化简二元二次方程Ax2-Cy2-Dx-Ey-F=0 (A,C不同时为零).htm坐标轴的平移的定义.htm平移公式.htm