#include<stdio.h>
main()
{
double a,b,c,D,alpha,beta;
clrscr();
printf("enter the value of a,b,c");
scanf("%lf %lf %lf ",&a,&b,&c);
D=(b*b)-(4*a*c);
if(D==0)
{
printf("root=%lf \n",(-b)/(2*a));
}
else if(D<0)
{
printf("roots are imaginary");
}
else
{
alpha=((-b+sqrt(D))/(2*a));
beta=((-b-sqrt(D))/(2*a));
printf("alpha=%lf , beta=%lf",alpha,beta);
}
getch();
}
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