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78.78. 10os(2x) -2 2 0.2.




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program tabulirovanie;

var a, b, h, x, y: real;

begin

a:= -2; b:= 2; h:= 0.2;

x:= a;

repeat

y:= 10*Cos(2*x);

writeln('x = ',x:3:2,' y = ',y:3:2);

x:= x + h;

until x > b + h;

readln

end.

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79. 79. 10Sin(x+1) -3 3.

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Y . , . , , . , , , .

round.

program grafik;

uses dos, crt, graph;

const kx = 100; { = 100 }

ky = 15; { Y = 15 }

a = -3; b= 3;

h = 0.1; { }

var y, x: real;

gd, gm, i, x1, y1: integer;

begin

gd:= 9; gm:= 1;

initgraph(gd,gm,'egavga.bgi'); { 640 350 }

setcolor(3); { }

rectangle(0,0,639,349);

line(0,175,640,175); line(640,175,620,170); line(640,175,620,180);

line(320,0,320,349); line(320,0,325,15); line(320,0,315,15);

setcolor(5); { }

x:= a; { }

while x <= b do { }

begin

y:= 10*Sin(x+1); { }

x1:= 320 + round(kx*x); { }

y1:= -round(ky*y)+175; { OY }

PutPixel(x1, y1, 10); { }

x:= x+h; { }

end;

readln;

closegraph;

end.

 

 

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