1.

Find the general solution of the linear partial differential equation, yzp+zxq=xy.

A. (x<sup>2</sup>-y<sup>2</sup> z<sup>2</sup> )=0
B. (x<sup>2</sup>-y<sup>2</sup>, y<sup>2</sup>-z<sup>2</sup> )=0
C. (x<sup>2</sup>-y<sup>2</sup>, y<sup>2</sup>-x<sup>2</sup> )=0
D. (x<sup>2</sup>-z<sup>2</sup>, z<sup>2</sup>-x<sup>2</sup> )=0
Answer» C. (x<sup>2</sup>-y<sup>2</sup>, y<sup>2</sup>-x<sup>2</sup> )=0


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