lab2

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#include <iostream> #include <cmath> using namespace std; void task41() { double a ,b ,c ,d; cout << "(a*d+b*c)/(a*d)"; cout << "\n\n Введите a="; cin >> a; cout << a; cout << "\n\n Введите b="; cin >> b; cout << b; cout << "\n\n Введите с="; cin >> c; cout << c; cout << "\n\n Введите d="; cin >> d; cout << d; //Проверка на 0 if (a==0 || d==0) { cout << "\na or b must be not 0\n Error"; return; } //Расчёт по формуле cout << "\nresult:" << (a*d+b*c)/(a*d); } void task20() { double x, y; cout <<"(1+sin(x+1)^(1/2))/(cos(12*y-4))"; cout <<"\nВведите x="; cin >>x; cout <<x; cout <<"\nВведите y="; cin >>y; cout <<y; //Проверка на 0 if(cos(12*y-4)==0) { cout << "\ncos(12*y-4) must bo not 0"; return; } //Расчёт по формуле cout <<"\nResult:" << 1+sin(pow((x+1),(1/2)))/(cos(12*y-4)); } void task45() { double x; cout <<"|1-|x||"; cout <<"\nВведите x="; cin >>x; cout <<x; //Расчёт по формуле cout <<"\nResult:" << abs(1-abs(x)); } void task23() { double x, y; cout <<"3^x-4*x+(y-(|x|)*(1/2))"; cout <<"\nВведите x="; cin >> x; cout << x; cout <<"\nВведите y="; cin >> y; cout <<y; //Расчёт по формуле cout <<"\nResult:" << pow(3,x)-4*x+(y-pow(abs(x),(1/2))); } void task3() { double x, y; cout << "((sin(x)+cos(y))/(cos(x)-sin(y)))*tg(x*y)"; cout << "\nВведите x="; cin >>x; cout <<x; cout <<"\nВведите y="; cin >>y; cout <<y; //Проверка на 0 if (cos(x)-sin(y)==0) { cout << "\n Error"; return; } //Расчёт по формуле cout <<"\nResolt:" << ((sin(x)+cos(y))/(cos(x)-sin(y)))*(tan(x*y)); } int main() { task3(); }
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