Math, asked by khalsa3, 1 year ago

please answer this as fast as possible
plz answer 3,4,7

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Answered by Satyaprakashsahoo
1
4. a+b+c= 0
  => b+c = -a
so, (b+c)/a= -a/a = -1...
likewise,  (c+a)/b= -1 and (a+b)/c= -1
 sorry i can't answer 3.
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