If f (x) = 3x² + 15x + 5, then the approximate value of f (3.02) is

A. 47.66 B. 57.66 C. 67.66 D. 77.66

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Solution

Let x = 3 and Δx = 0.02. Then, we have:

Hence, the approximate value of f(3.02) is 77.66.

The correct answer is D.

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If $f (x) = 3 x^{2} + 15 x + 5,$ then the approximate value of f(3.02) is ?
(a) 47.66 (b) 57.66 (c) 67.66 (d) 77.66

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