% 1.1-topshiriq Tog‘ayeva Zarina (17-raqam)
clc;
clear;
k=2;
x=0.32;
d=1.25;
n=-4;
b=0.75;
c=2.2;
y=10^(-3)*tan(k*n)-((x-d)*(x^2+b^2))/(nthroot(x^2+b^2-c*d,3))-cos(k*x)/sin(5);
disp(y)

%1.2-topshiriq Tog‘ayeva Zarina (17-raqam);
format long
a1 = sqrt(30);
a2 = 7/15;
xato1 = abs(a1 - 5.48);
xato2 = abs(a2 - 0.467);
nisbiy1 = xato1/5.48*100;
nisbiy2 = xato2/0.467*100;
disp('1.2-topshiriq:')
disp('Birinchi nisbiy xatolik (%):')
disp(nisbiy1)
disp('Ikkinchi nisbiy xatolik (%):')
disp(nisbiy2)

%1.3-topshiriq Tog‘ayeva Zarina (17-raqam);
clc;
clear;
a = 11;
b = 9;
L = 1/2*sqrt(b^2+16*a^2) ...
    + (b^2/(8*a))*log((4*a+sqrt(b^2+16*a^2))/b);
disp('ABC yoy uzunligi (sm):')
disp(L)