Nhóm 3:
Program BTT;
Uses crt;
Var i,n: longint;
s: extended;
Begin
Clrscr;
Write('Nhap n: '); Readln(n);
s:=0;
For i:=1 to n do
s:=s+i/(i+1);
Write('S = ',s:0:2);
Readln
End.
Nhóm 4:
Program BTT;
Uses crt;
Var i,n: longint;
s: extended;
Begin
Clrscr;
Write('Nhap n: '); Readln(n);
s:=0;
For i:=1 to n do
s:=s+(i+1)/i;
Write('S = ',s:0:2);
Readln
End.