Questions asked by Utkarsh B.

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• If i choose any two number , what is the probablity that both of them would be equal?
  
• 2x+1,x^2+x+1,3x^2-3x+3 are in A•P• then , find the value of X?
  
• Why copper utensils kept expose to air turn green ? What is the chemical equation behind it? Please write a chemical equation for it.
  
• What is the maximum velocity of an object that can travel on land of earth?