(a)Find the Riemann sum for f(x) = 3 sin x, 0 ≤ x ≤ 3π/2,with six terms, taking the sample points to be right endpoints. (Round your answers to six decimal places.) find R6=?
(b) Repeat part (a) with midpoints as the sample points.find M6=?
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在Excel 2003中,公式SUM(A2:A5)的作用是().
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你能帮帮他们吗