Let be a continuous random variable, and let be a continuous
图片识别成文本: Let f(x) be a monotonically decreasing continuous function on [o, oo), and prove that: a2(t)dt 3t2f(t)dt, a E [... 查看全部
图片识别成文本: Let f() be a continuous function,( )=0, Et be a cylinder x2 +y2 =t2(>0) and the whole surface of the stereo ... 查看全部