问答题求证,设fn→f,a.e.或,∫X|fn|dμ≤const,则f∈L1
问答题求证,设fn≥0,
问答题求证,设fnM(X),若fn≥g∈L1,则若fn≤g∈L1,则
问答题求dx(p>-1)
问答题求证,设fn∈M(X),g∈L1,g≤fn↑f或g≥fn↓f,则∫xfndμ→∫xfdμ(n→∞)