Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.
曲线在点(0,-1)处的切线方程为________.
设随机变量(X,Y)服从二维正态分布,且X与Y不相关,f(x)f(y)XY分别表示X,Y的概率密度,则在Y=y的条件下,X的条件概率密度fX|Y(X|Y)为()
Theproblem________whenthestudentsrefusedtodotheirhomework.
f(x,y)=y根号1-x2+sf(x,y)dxdy其中D=(x,y),则