试题与答案

已知抛物线x2=y,O为坐标原点. (Ⅰ)过点O作两相互垂直的弦OM,ON,设M

题型:解答题

题目:

已知抛物线x2=y,O为坐标原点.

(Ⅰ)过点O作两相互垂直的弦OM,ON,设M的横坐标为m,用n表示△OMN的面积,并求△OMN面积的最小值;

(Ⅱ)过抛物线上一点A(3,9)引圆x2+(y-2)2=1的两条切线AB,AC,分别交抛物线于点B,C,连接BC,求直线BC的斜率.

答案:

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参考答案:A解析:程序化交易系统的优化是指对交易系统的参数根据交易的情况和市场变化作进一步调试使之达到最佳状态的过程。

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