Question

Answer 1

Bài 5:

#include <bits/stdc++.h>

using namespace std;

double a,b,c,d,ln,nn;

int main()

{

cin>>a>>b>>c>>d;

ln=a; 

ln=max(ln,b);

ln=max(ln,c);

ln=max(ln,d);

nn=a;

nn=min(nn,b);

nn=min(nn,c);

nn=min(nn,d);

cout<<"So lon nhat la:"<<fixed<<setprecision(2)<<ln<<endl;

cout<<"So nho nhat la:"<<fixed<<setprecision(2)<<nn;

return 0;

}

Answer 2

1.

#include <bits/stdc++.h>

using namespace std;

float a,b;

int main()

{

cin>>a>>b;

if(a==0)

{

if(b==0)

cout<<"Phuong trinh co vo so nghiem"<<endl;

else

cout<<"Phuong trinh vo nghiem"<<endl;

}

else

cout<<"Phuong trinh co mot nghiem la x: "<<-b/a<<endl;

return 0;

}