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1. A table of values for f(t) is given.

\text { Estimate } \int_{0}^{120} f(t) \text { by using a left Riemann sum with six subintervals. } \text { Estimate } \int_{0}^{120} f(t) \text { by using a right Riemann sum with six subintervals. } \text { ) Estimate } \int_{0}^{120} f(t) \text { by using a midpoint sum with three subintervals. } \text { Estimate } \int_{0}^{120} f(t) \text { by using the trapezoidal rule with three subintervals. }

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