Mathematics · Differential Equations
The general solution obtained from Lagrange's auxiliary equations for the partial differential equation (xy - zx)p + (yz - xy)q = xz - yz is of the form:
- 1f(x + y + z, xyz) = 0✓
- 2f(x2 + y2 + z2, xyz) = 0
- 3f(x + y + z, x - y + z) = 0
- 4f(x + y + z, x2 + y2 + z2) = 0
Correct answer
f(x + y + z, xyz) = 0
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