1.

Find the particular solution of the differential equation ( frac{dy}{dx}= frac{9y ,log x}{5x ,log y} ).

A. (log u2061y)<sup>2</sup>+(log u2061x)<sup>2</sup>=0
B. (log u2061y)<sup>2</sup>-(log u2061x)<sup>2</sup>=0
C. log u2061y-log u2061x=0
D. 2 log u2061x+log u2061y=0
Answer» C. log u2061y-log u2061x=0


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