A) 2u
B) u
C) 3u
D) u/3
Correct Answer: C
Solution :
\[u={{x}^{3}}{{\left( \frac{y}{x} \right)}^{2}}{{\tan }^{-1}}\left( \frac{y}{x} \right)\] is homogeneous in x, y of degree 3. \[\therefore \] \[x{{u}_{x}}+y{{u}_{y}}=3u\].You need to login to perform this action.
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