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Unformatted text preview: 3 x 2 + 3 x 23 ; (b) lim x 1 x 22 x + 1 x 3x ; (c) lim x 1 x1 x1 . 5. We dene lim x a f ( x ) = + to mean that ( M R )( > 0)( x D ( f )) h ( <  xa  < ) ( f ( x ) > M ) i . (a) Prove that lim x 3 1 ( x3) 2 = + . 2 (b) Dene lim x a + f ( x ) = + and prove that lim x 0+ 1 x = + ....
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 Winter '10
 Spyros

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