MCQOPTIONS
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				| 1. | 
                                    What is the order of the partial differential equation, ( frac{ ^2 z}{ x^2}-( frac{ z}{ y})^5+ frac{ ^2 z}{ x y}=0 )? | 
                            
| A. | Order-5 | 
| B. | Order-1 | 
| C. | Order-4 | 
| D. | Order-2 | 
| Answer» E. | |