Question discussion

Using the trapezoidal rule with two sub-intervals (h = 1), what is the approximate value of ∫₀² x² dx ?

Correct answer: D

Explanation

(h/2)[f(0) + 2f(1) + f(2)] = 0.5 × (0 + 2 + 4) = 3 (the exact value is 8/3).

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