Question
Sun March 27, 2011 By: Bhanu Marwaha

sir/mam

Expert Reply
Fri April 08, 2011
Dear student
In real analysis, the symbol \infty, called "infinity", denotes an unbounded limit.
  means that x grows without bound, and
  means the value of x is decreasing without bound.
In case of a myopic person, since the distance grows without bound, u is taken as + infinity.
Hope this helps.
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