Question 5 A 8 13 R(t) 10 17 32 The differentiable funetion Ris increasing, and the graph of Ris concave down. Values of R (t) at selected values of t are given in the table above. The trapezoidal sum (5 - 1) (1) + (8 - 5) () + (13 - 8) (2) approximates R(t) dt Which of the following statements is true? The trapezoidal sum is an underestimate for R(t) dtbecause Ris increasing. The trapezoidal sum is an overestimate for R(t) dtbecause Ris increasing. The trapezoidal sum is an underestimate for R(t) dtbecause the graph of Ris concave down. The trapezoidal sum is an overestimate for R(t) dtbecause the graph of Ris concave down. © O O O

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