6) Write a program to finds the roots of quadratic equation.

 source file name: roots.c

Program: If  coefficients of  quadratic equation are input through keyboard. Write a program in C to find  the roots of quadratic equation  ax²+bx+c=0 whose coefficients are a, b and c.

#include<math.h>

void main()

{

int a,b,c;

float R1,R2;

//clrscr();

printf("\n enter coefficients a, b and c of equation: ");

scanf("%d%d%d",&a,&b,&c);

R1=(-b+sqrt(b*b-4*a*c))/(2*a);

R2=(-b-sqrt(b*b-4*a*c))/(2*a);

printf("\n Root 1: %f and Root 2 : %f  ",R1,R2);

getch();

}

output: