Question. How many boolean expressions are specified? int main() { double a, b,

Question

Question. How many boolean expressions are specified?

int main()

{ double a, b, c, disc, root1, root2;

      cout << "This program calculates the roots of a ";

      cout << " quadratic equation of the form ";

      cout << " 2 ";

      cout << " ax + bx + c = 0 ";

      cout << "Please enter values for a, b, and c: ";

      cin >> a >> b >> c;

      if ( a == 0.0 && b == 0.0)

      cout << "The equation is degenerate and has no roots. ";

      else if (a == 0.0)

      cout << "The equation has the single root x = "

       << -c/b << endl;

      else

      {

      disc = pow(b,2.0) - 4 * a * c; // calculate discriminant

      if (disc > 0.0)

      {

      disc = sqrt(disc);

      root1 = (-b + disc) / (2 * a);

      root2 = (-b - disc) / (2 * a);

      cout << "The two real roots are "

       << root1 << " and " << root2 << endl;

      }

      else if (disc < 0.0)

      cout << "Both roots are imaginary. ";

      else

      cout << "Both roots are equal to " << -b / (2 * a) << endl;

      }   

return 0; }

Explanation / Answer

1) a == 0.0
Explanation: The above is boolean expression because it compares a with 0, and this expression gives us true or false
2) b == 0.0
Explanation: The above is boolean expression because it compares b with 0, and this expression gives us true or false
3) a == 0.0
Explanation: The above is boolean expression because it compares a with 0, and this expression gives us true or false
4)disc > 0.0
Explanation: The above is boolean expression because it compares disc > 0, and this expression gives us true or false
5)disc < 0.0
Explanation: The above is boolean expression because it compares disc < 0, and this expression gives us true or false


So there are Total 5 boolean expression. Thanks let me know if there is any concern.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.