Cauchy 分布：验证 f(x) = (1)/(pi(1+x^2)) 满足 integrate from -infinity to infinity of f(x) dx = 1 。Cauchy 分布：验证 f(x) = (1)/(pi(1+x^2)) 满足 integrate from -infinity to infinity of f(x) dx = 1 。

• Natural Language
• Math Input