Answers

  • Brainly User
2014-08-28T20:34:37+05:30
Using distance formula root[ (x-5)^2+(5+1)^2+(1-7)^2]=9
orr    squaring both sides    
(x-5)^2+36+36=81
orr  (x-5)^2= 81-72=9 
or x-5=+_3
hence x= 3+5=8
and -3+ 5=2
1 5 1
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thanks brother
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