ADVANCED MATH (Round off the answers in the nearest ten thousands,  Evaluate J by means fo trapezoidal rule using n = 10 and n = 20.  a. If n = 10, solve the area of the seventh trapezoid (from the left)? b. if n = 20, solve the area of the seventh trapezoid (from the left)? c. evaluate J by means of trapezoidal rule using n = 20? Reminder that the integral cannot be evaluated ny elementary calculus, but leads to the error function.

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