C program to find roots of Quadratic Equation.

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Question:

Write a Program in C to find the roots of Quadratic Equation.

Source Code:

#include<stdio.h> #include<math.h> int main() { int a,b,c,det; double root1,root2; printf("Enter the value of a, b and c from Quadratic Equation\n"); scanf("%f \n %f \n %f \n" ,&a, &b, &c); det=(b*b)-(4*a*c); if(det<0) { printf("Root is imaginary."); } else if(det==0) { root1=(-b)/(2*a); root2=root1; } else { root1=((-b)+pow(det,0.05))/(2*a); root1=((-b)-pow(det,0.05))/(2*a); } printf("Root1=%.21f \n",root1); printf("Root2=%.21f \n",root2); return 0; }

Output:

Enter the value of a, b and c from Quadratic Equation 1 -2 1 Root1=1.00 Root2=1.00

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