• 2022-06-09
    已知一抛物线[tex=5.714x2.786]L6t4fJbqVB11cvmaLyp++OHfiyxHhNonplnwzD/p6TPeIrsipvCrtfH0iwyWYyh/dPmYkt1TAT+ztHzNJCWQ/Zd40vm17ArLdVWjwILNduk=[/tex]平行移动,且顶点总在抛物线[tex=6.429x2.786]3X4AXgzEacl6vAVPBBrqw5eMaplK588BpFuJKxY26o6O/wj6KH46oLjjAO4moA1gWtrS1Hwc6qtamJk9g3SrHplIrizTZ765ipuw2Ne84h0=[/tex]上,试求其轨迹方程.