Question: I need the solution ow Find ar when r = 2 and s = - 2 ifw = (x+ y + z) , x=r -s,

I need the solution

ow Find ar when r = 2 and s = - 2 ifw = (x+ y + z) , x=r -s, y = cos (r + s), z = sin (r + s). = Ir=2. 5= -2 (Simplify your answer.)

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