求原点与该点的连线与x轴的夹角小于π/4的概率.随机地向半圆0<y<sqrt(2ax-x²)(a为正常数)内掷一点,点落在半圆内任意区域的概率与此区域的面积成正比.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 15:36:30
![求原点与该点的连线与x轴的夹角小于π/4的概率.随机地向半圆0<y<sqrt(2ax-x²)(a为正常数)内掷一点,点落在半圆内任意区域的概率与此区域的面积成正比.](/uploads/image/z/8791422-6-2.jpg?t=%E6%B1%82%E5%8E%9F%E7%82%B9%E4%B8%8E%E8%AF%A5%E7%82%B9%E7%9A%84%E8%BF%9E%E7%BA%BF%E4%B8%8Ex%E8%BD%B4%E7%9A%84%E5%A4%B9%E8%A7%92%E5%B0%8F%E4%BA%8E%CF%80%2F4%E7%9A%84%E6%A6%82%E7%8E%87.%E9%9A%8F%E6%9C%BA%E5%9C%B0%E5%90%91%E5%8D%8A%E5%9C%860%EF%BC%9Cy%EF%BC%9Csqrt%282ax-x%26%23178%3B%29%EF%BC%88a%E4%B8%BA%E6%AD%A3%E5%B8%B8%E6%95%B0%EF%BC%89%E5%86%85%E6%8E%B7%E4%B8%80%E7%82%B9%2C%E7%82%B9%E8%90%BD%E5%9C%A8%E5%8D%8A%E5%9C%86%E5%86%85%E4%BB%BB%E6%84%8F%E5%8C%BA%E5%9F%9F%E7%9A%84%E6%A6%82%E7%8E%87%E4%B8%8E%E6%AD%A4%E5%8C%BA%E5%9F%9F%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%88%90%E6%AD%A3%E6%AF%94.)
xRN@h1EI &.D*Q01ZO'Nˊ_1֍qts=l=79QZzסC$XC-jCL}ok3|M
eඡrƇ]wյ
ErٹEu-Z-x;m%a+llK*Rh
e8VlC\݄+VPNkoo2-Lׅ6ԛܸb-oftC8VrcFwB}ӊE*rcJ 1چvSIV&f:NJ4p&\%4 j12B&lJ64p2