Question: 2. Using quadratic approximation, find an approximate value for (4.2) 2 + (26.7) 3 + (256.4) . 3. Is there a function f : R-

2. Using quadratic approximation, find an approximate value for (4.2) 2

2. Using quadratic approximation, find an approximate value for (4.2) 2 + (26.7) 3 + (256.4) . 3. Is there a function f : R- - R whose quadratic approximation is itself? Justify your answer fully

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