#include <iostream> #include <cmath> using namespace std; int main() { double a, b, c, d, f, z, y, x, k; cout << "enter b, c, d, f, z, y, x \n"; cin >> b>> c>> d>> f>> z>> y>> x; if ((d* pow(x,3) - f == 0) || (sin(x) == 0)) { cout << "no solutions"; } else { k = pow(cos(x) ,2) / sin(x) - x*y*z + (a*(pow(x,2)) + b*x + c) / (d*(pow(x, 3)) - f); cout << k; } return 0; }