1.

If \[{{x}^{3}}+{{y}^{3}}-3axy=0\], then \[\frac{dy}{dx}\] equals[RPET 1996]

A. \[\frac{ay-{{x}^{2}}}{{{y}^{2}}-ax}\]
B. \[\frac{ay-{{x}^{2}}}{ay-{{y}^{2}}}\]
C. \[\frac{{{x}^{2}}+ay}{{{y}^{2}}+ax}\]
D. \[\frac{{{x}^{2}}+ay}{ax-{{y}^{2}}}\]
Answer» B. \[\frac{ay-{{x}^{2}}}{ay-{{y}^{2}}}\]


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