1. Find , and for u = P-4 q-r if p = x+ y+ z ,q...

 

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ди ди 1. Find , and for u = P-4 q-r if p = x+ y+ z ,q = x + y + z,r = ax' ay x +y-z at the point (x, y, z) = (V3,2,1). 2. Find if, y2 - x2 = sin(xy) dx 一 ди ди 1. Find , and for u = P-4 q-r if p = x+ y+ z ,q = x + y + z,r = ax' ay x +y-z at the point (x, y, z) = (V3,2,1). 2. Find if, y2 - x2 = sin(xy) dx 一