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anemone
Gold Member
MHB
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Suppose that $x$ and $y$ are positive real numbers. Find all real solutions of the equation $\dfrac{2xy}{x+y}+\sqrt{\dfrac{x^2+y^2}{2}}=\sqrt{xy}+\dfrac{x+y}{2}$.
[sp]anemone said:Well done, topsquark! You know, I sense your obsession lately with my POTWs and challenge problems, hehehe...I hope so far you found nothing but fun in tackling all those problems!
topsquark said:[sp]
It's not so much that I've been obsessed, it's more that I have actually been able to solve some recently. I usually try to work them out.
[/sp]
-Dan
To find real solutions to a system of equations, you can use a variety of methods such as substitution, elimination, or graphing. These methods involve manipulating the equations to isolate a variable and then solving for its value.
Having real solutions to a system of equations means that there is at least one set of values that satisfy all of the equations in the system. In other words, these values make all of the equations true when substituted into them.
If a system of equations has no real solutions, it means that there is no set of values that can make all of the equations true. This can be determined by graphing the equations and seeing if they intersect at any point. If they do not intersect, then there are no real solutions.
Yes, a system of equations can have more than one set of real solutions. This means that there are multiple sets of values that satisfy all of the equations in the system. These solutions can be found by solving the equations using different methods or by graphing and finding the points of intersection.
Finding real solutions to a system of equations can be useful in a variety of real-world applications. For example, it can be used to solve problems involving multiple variables such as finding the optimal solution to a business or engineering problem. It can also be used to model and predict relationships between different quantities.