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"For any ,there is a so that when " \ \

The value that x  approaches ," a " is 3. \ \

The limit L  is 15 \ \

when \ \

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We need to bound |x + 1| and |x + 2| \ \

So if we first fix |x - 3|< 0.2 \ \

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Then \ \

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and \ \

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