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#include <iostream>
#include <cmath>
using namespace std;
int main() {
float x,y,a;
cin >> x >> y;
if ((cos(x)==x/3) || (x<0))
cout<<"Решений нет";
else { a=((x*log(x))+(y/(cos(x)-(x/3))));
cout<<a;}
return 0;
}
Cpp
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