Question

Write a C++ prgm to find roots by using quadratic formula?

Answer 1

DO EET

Answer 2

First try to declare the variables you need, write your code here.

Answer 3

We'll need three variables, a, b and c
Ask the user to enter all three;

>Declare the nature of these variables
>Use cout and cin to get the values of them

Answer 4

I'll be right back.

Answer 5

#include<iostream.h>
void main()
{
int a,b,c;
cout<<"Enter the first number?",
cin>>a;

Answer 6

@zepp like this

Answer 7

shall i continue of any mistakes

Answer 8

This is perfect

Answer 9

#include<iostream.h>
void main()
{
int a,b,c;
cout<<"Enter the first number?",
cin>>a;
cout<<" enter second number?";
cin>>b,
cout<<" enter third number?";
cin>>c;

Answer 10

hw wat to do?

Answer 11

hw to insert quad formula

Answer 12

Make another variable

Variable = Formula;
Output Variable

Answer 13

wat i have add like this int a,b,c,x; .........then wat

Answer 14

@zepp r u there

Answer 15

@nick67 wat should i do!

Answer 16

@Yahoo!
do you know how to solve it with paper and pen ?

Answer 17

Ookay, back.

Answer 18

\[\LARGE \frac{-b\pm\sqrt{b^2-4ac}}{2a}\]

Answer 19

@zepp
how did you write a so big formula ...?

Answer 20

That's the quadratic formula?

Answer 21

yes, I mean the character size

Answer 22

\LARGE

Answer 23

cool, thank you

Answer 24

yw

Answer 25

hw to insert this is prgm

Answer 26

@zepp @nick67 Plzz help

Answer 27

i mean quad formula

Answer 28

@Yahoo!
hint: divide formula into smaller pieces

Answer 29

No idea ! o

Answer 30

which steps do you execute to solve the problem by hand ?

Answer 31

#include <iostream>
using namespace std;
#include <cmath>

int main()
{
double a, b, c; // Declaring variables
cout << "a? ";
cin >> a;
cout << "b? ";
cin >> b;
cout << "c? ";
cin >> c;

double const discriminant = (pow(b,2) + (4 * a*c) ); // Discriminant: sqrt(b^2 + 4ac)

double result1 = ((0 - b) + discriminant)/ (2 * a); // First result, -b+sqrt(b^2+4ac)/2a
double result2= ((0 - b) - discriminant)/ (2 * a); // Second result, -b-sqrt(b^2+4ac)/2a

cout << result1 << endl; // Display result1
cout << result2 << endl; // Display results
return 0;
}

Answer 32

http://puu.sh/Nkk9

Answer 33

thxxx

Answer 34

Can u work out Physics

Answer 35

Motion in 2-D

Answer 36

No :(

Answer 37

@zepp there is solme error in this i am not getting double const discriminant = (pow(b,2) + (4 * a*c) ); // Discriminant: sqrt(b^2 + 4ac)

Answer 38

I got no error while compiling

Answer 39

i got an error saying abt using pow