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Q:

If $$ {(x-5)^{2} +{(y-2)^{2}}+{(z-9)^{2}=0}}$$ then what is the value of (x+y-z)?

  • 1
    -2
  • 2
    4
  • 3
    3
  • 4
    1
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Answer : 1. "-2"

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