The function values f(x) in the table below is increasing for 0Sx< 12. 0 369 12 f(x) 34 35 37 4244 12 (A) Find a right-hand sum to estimate the integral of f(x) dx using all possible intervals in the table above having either Ax = 3 or Ax = 6. Ax = 3, Integral Estimate = Σ Ax = 6, Integral Estimate = Σ (B) Which of the two answers in part (A) is more accurate? Ax = Σ is more accurate (Be sure that you can explain why.) (C) Find a left-hand sum to estimate the integral using Ax = 3. Integral Estimate = Σ

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