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Question
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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