Find an approximation for the area under the curve of f(t) = -2 + 4t in the interval [1,3.8] by using the trapezoidal rule.

Question

Find an approximation for the area under the curve of f(t) = -2 + 4t in the interval [1,3.8] by using the trapezoidal rule. Divide the interval into sub-intervals of length 0.7 and give your answer correct to 3 significant figures without specifying units.

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