1.设总体概率函数如下,x1,···,xn是样本,试求未知参数的最大似然估计.-|||-(1) (x;theta )=sqrt (theta )(x)^sqrt (theta -1) lt xlt 1 ,θ>0;-|||-(2) (x;theta )=theta (c)^theta (x)^-(theta +1) gt c gt 0 已知, theta gt 1.