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Re: Probs from 1000 DS set :Explanations Reqd
by rajwinder singh - Friday, 8 October 2010, 09:06 PM
  vaibhav..... u cannot take x on the othr side as u don't know what is the sign of x,because if x is negative then the symbol will change i.e x^2-1 will become greater than zero....that'z why it is insufficent............upar waala data is also,the answr is ,both the data is insufficent.....