Saved Bookmarks
| 1. |
\begin{array}{c}{\text { If } u=\tan ^{-1} \frac{x^{3}+y^{3}}{x+y}, \text { find the value of }} \\ {x^{2} \frac{\partial^{2} u}{\partial x^{2}}+2 x y \frac{\partial^{2} u}{\partial x \partial y}+y^{2} \frac{\partial^{2} u}{\partial y^{2}}}\end{array} |
|
Answer» jo mene send kiya vhi answer h apka answer glt h |
|