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As ala2ay a, = 1 Hence (1 + al1a22" If a...

As ala2ay a, = 1 Hence (1 + al1a22" If a, b, x, y are positive natural numbers such that Consider the positive numbers a , a'"....y times and by, bo'....x ax by --+ > ab *Illustration 16. x y that-+-= 1 then prove that + x y Solution. For all these numbers, la" o'....y timel+ bbo ....x times! ya+xa" AM =

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