Question: ow Find when r = 4 and s = - 4 if w = (x + y + z) , x=r-s, y= cos (r+ s),


ow Find when r = 4 and s = - 4 if w = (x + y + z) , x=r-s, y= cos (r+ s), z= sin (r+ s). ar ow E or r = 4, S= -4 (Simplify your answer.)
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