Question

Вычислить S= cos(x) + cos(x+1) + cos(x+2) + cos (x+n) n-натуральное число

Answer 1

===== PascalABC.NET =====

begin

 var n := ReadInteger('n =');

 var x := ReadReal('x =');

 var s := Cos(x);

 for var i := 1 to n do

   s += Cos(x + i);

 s.Println

end.