The roots of the quadratic equation ax2 + bx + c = 0, a ≠0 are given by the following formula:
in this formula, the term b2–4ac is called the discriminant. if b2–4ac = 0, then the equation has a single (repeated) root. if b2–4ac > 0, the equation has two real roots. if b2–4ac< 0, the equation has two complex roots.
write a program that prompts the user to input the value of a (the coefficient of x2), b (the coefficient of x), and c (the constant term) and outputs the type of roots of the equation. furthermore, if b2–4ac≥0, the program should output the roots of the quadratic equation.

// here is program in C.

// include header

#include <stdio.h>

#include<math.h>

// main function

int main()

{

 // variables

 int a,b,c;

 float d;

 printf("enter the value of a,b,c :");

 // read the value of a,b,c

 scanf("%d %d %d",&a,&b,&c);

 // find the discriminant

 d=b*b-(4*a*c);

 // if d=0 then no real root

 if(d<0)

printf("The equation has no real roots \n");

d=0 then equation has one root

 else if(d==0)

 {

   // find the root

 float root=-b/(2*a);

 printf("only root of the equation is:%f \n",root);

 }

 // d>=0 then equation has two real roots

 else if(d>0)

 {

     // calculate both roots

     float root1=(-b+sqrt(d))/(2*a);

     float root2=(-b-sqrt(d))/(2*a);

     // print both the roots

     printf("first root of the equation is:%f \n",root1);

     printf("second root of the equation is:%f \n",root2);

 }

   return 0;

}

Explanation:

Read the value of a,b,c from user.Calculate discriminant "d" as b^2 - 4ac . If the value of discriminant(d) is less than 0 then there will be no real root. If discriminant(d) is equal to 0 then quadratic equation has only one root which is -b/2a. Calculate the only root and print it.If discriminant(d) is greater than 0 then quadratic equation has two root as root1= (-b + sqrt(b^2 - 4ac)) / (2a) and root2 = (-b - sqrt(b^2 - 4ac)) / (2a). calculate both the roots and print them.

Output:

enter the value of a,b,c :1 6 4

first root of the equation is:-0.763932

second root of the equation is:-5.236068

that without the operating systems you would have to control and synchronize computer hardware.

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)