Asked by bhanu marwaha | 27th Mar, 2011, 06:28: PM

Expert Answer:

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.

Answered by  | 8th Apr, 2011, 11:10: AM

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