It has one real solution.
Yes, one equals one. If you get that when solving an algebraic equation, the equation is true for all real numbers.
-4
Is a trigonometric equation which has infinitely many real solutions.
yes
There are no real solutions because the discriminant of the quadratic equation is less than zero.
8 = 8v - 4v8 This equation does not have any real solution.
domain is set of real numbers range is set of real numbers
2.
the range belongs to the set of real numbers and is infinite since the equation describes a straight line.
This quadratic equation has no real roots because its discriminant is less than zero.
It is a quadratic equation in X, with two real roots.