Program TINH_TONG_GT;
Uses crt;
Var i,n,gt: integer;
s:real;
Begin
Clrscr;
Writeln('CHUONG TRINH TINH TONG GIAI THUA:');
Writeln('---------------------------------');
Write('Nhap n='); Readln(n);
gt:=1;
s:=1;
For i:=1 to n do
Begin
gt:=gt*i;
s:=s+1/gt;
End;
Writeln('Tong S = ',s:8:2);
Readln;
End.
Program TINH_TONG_LT;
Uses Crt;
Var i,n:integer;
x,s,lt:real;
Begin
Clrscr;
Writeln('TINH TONG LUY THUA:');
Writeln('------------------------------');
Write('Nhap x = '); readln(x);
Write('nhap n = '); readln(n) ;
s:=0;
lt:=1;
For i:=1 to n do
Begin
lt:=lt*x ;
s:=s+lt ;
End;
Writeln('Tong S = ',s:8:2);
Readln;
End.
Program TINH_TONG_LT_GT;
Uses Crt;
Var i,n,gt:integer;
x,s,lt:real;
Begin
Clrscr;
Writeln('TINH TONG LUY THUA/GIAI THUA:');
Writeln('--------------------------------');
Write('Nhap x = '); readln(x);
Write('nhap n = '); readln(n) ;
s:=2;
gt:=1;
lt:=1;
For i:=1 to n do
Begin
lt:=lt*x ;
gt:=gt*i;
s:=s+lt/gt ;
End;
Writeln('Tong S = ',s:8:2);
Readln;
End.
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