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Section 7.6 – Numerical Integration

Section 7.6 – Numerical Integration. represents the area between the curve 3/x and the x-axis from x = 4 to x = 8. Four Ways to Approximate the Area Under a Curve With Riemann Sums. Left Hand Sum Right Hand Sum Midpoint Sum Trapezoidal Rule.

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Section 7.6 – Numerical Integration

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  1. Section 7.6 – Numerical Integration

  2. represents the area between the curve 3/x and the x-axis from x = 4 to x = 8

  3. Four Ways to Approximate the Area Under a Curve With Riemann Sums Left Hand Sum Right Hand Sum Midpoint Sum Trapezoidal Rule

  4. Approximate using left-hand sums of four rectangles of equal width • Enter equation into y1 • 2nd Window (Tblset) • Tblstart: 4 • Tbl: 1 • 2nd Graph (Table)

  5. Approximate using right-hand sums of four rectangles of equal width • Enter equation into y1 • 2nd Window (Tblset) • Tblstart: 5 • Tbl: 1 • 2nd Graph (Table)

  6. Approximate using midpoint sums of four rectangles of equal width • Enter equation into y1 • 2nd Window (Tblset) • Tblstart: 4.5 • Tbl: 1 • 2nd Graph (Table)

  7. Approximate using trapezoidal rule with four equal subintervals • Enter equation into y1 • 2nd Window (Tblset) • Tblstart: 4 • Tbl: 1 • 2nd Graph (Table)

  8. For the function g(x), g(0) = 3, g(1) = 4, g(2) = 1, g(3) = 8, g(4) = 5, g(5) = 7, g(6) = 2, g(7) = 4. Use the trapezoidal rule with n = 3 to estimate

  9. If the velocity of a car is estimated at estimate the total distance traveled by the car from t = 4 to t = 10 using the midpoint sum with four rectangles

  10. Consider the function f whose graph is shown below. Use the Trapezoid Rule with n = 4 to estimate the value of X X X X X A. 21 B. 22 C. 23 D. 24 E. 25

  11. The graph of f is shown to the right. Which of the following Statements are true? A. I only B. II only C. I and II only D. II and III only E. I, II, III

  12. A graph of the function f is shown to the right. Which of the statements are true? A. I only B. II only C. I and II only D. II and III only E. I, II, III

  13. The graph of f over the interval [1, 9] is shown in the figure. Find a midpoint approximation with four equal subdivisions for X X X X A. 20 B. 21 C. 22 D. 23 E. 24

  14. CALCULATOR REQUIRED Let R be the region in the first quadrant enclosed by the x-axis and the graph of y = ln x from x = 1 to x = 4. If the Trapezoid rule with three subdivisions is used to approximate the area of R, the approximation is A. 1.242 B. 2.485 C. 4.970 D. 7.078 E. 14.156

  15. Trapezoidal Rule: Midpoint Rule

  16. CALCULATOR REQUIRED Determine how many subdivisions are required with the Midpoint Rule to approximate the integral below with error less than 0.001 152

  17. CALCULATOR REQUIRED Determine how many subdivisions are required with the Trapezoid Rule to approximate the integral below with error less than 0.01 26

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