Algebraic Symmetry Math Example 1

Follow the full solution, then compare it with the other examples linked below.

Example 1

easy
Is f(x,y)=x2+y2f(x, y) = x^2 + y^2 symmetric in xx and yy?

Solution

  1. 1
    Step 1: Check if f(x,y)=f(y,x)f(x, y) = f(y, x).
  2. 2
    Step 2: f(y,x)=y2+x2=x2+y2=f(x,y)f(y, x) = y^2 + x^2 = x^2 + y^2 = f(x, y).
  3. 3
    Step 3: Yes, it is symmetric โ€” swapping xx and yy doesn't change the expression.

Answer

Yes, ff is symmetric.
An expression is symmetric in xx and yy if swapping them produces the same expression. This symmetry often simplifies problem-solving โ€” if (a,b)(a, b) is a solution, so is (b,a)(b, a).

About Algebraic Symmetry

The property of an expression or equation that remains unchanged when certain transformations โ€” such as swapping variables โ€” are applied.

Learn more about Algebraic Symmetry โ†’

More Algebraic Symmetry Examples