Const
 e=0.00001;

Var
 x_old, x_new, y, z:real;

Function Fun_1(x:real):real;
begin
 Fun_1:=sin(x+y)-1.5*x;
end;

Function Fun_2(x:real):real;
begin
 Fun_2:=x*x+y*y-1;
end;

Function Der_1(x:real):real;
begin
 Der_1:=cos(x+y)-1.5;
end;

Function Der_2(x:real):real;
begin
 Der_2:=2*x+2*y;
end;

Begin
 x_old:=-0.6;
 Repeat
  z:=x_old;
  x_new:=x_old-Fun_1(x_old)/Der_1(x_old);
  x_old:=x_new;
 Until Abs(x_old-z)<e;
 y:=-Sqrt(1-Sqr(x_old));
 Writeln('x1= ',x_old:0:5);
 Writeln('y1= ',y:0:5);
 Writeln('Sin(x1+y1)= ',Sin(x_old+y):0:5);
 Writeln('1.5*x1= ',1.5*x_old:0:5);
 Writeln;
 x_old:=0.6;
 Repeat
  z:=x_old;
  x_new:=x_old-Fun_2(x_old)/Der_2(x_old);
  x_old:=x_new;
 Until Abs(x_old-z)<e;
 y:=Sqrt(1-Sqr(x_old));
 Writeln('x2= ',x_old:0:5);
 Writeln('y2= ',y:0:5);
 Writeln('Sin(x2+y2)= ',Sin(x_old+y):0:5);
 Writeln('1.5*x2= ',1.5*x_old:0:5);
 Readln;
End.