Solve x^2 p^2 + y^2 q^2 = 1, where p=∂z / ∂x and q = ∂z / ∂y MATHEMATICS-2 question answer collection

MATHEMATICS-2

Que 19 : Solve x² p² + y² q² = 1, where p=∂z / ∂x and q = ∂z / ∂y

Answer:

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