In this problem, you will calculate the area between ð‘“(ð‘¥) = ð‘¥^2 and the ð‘¥-axis over the interval [3,11] using a limit of right-endpoint Riemann sums:
Area = limð‘›â†’∞ (∑ð‘˜=1ð‘› ð‘“(ð‘¥ð‘˜)Δð‘¥).
Express the following quantities in terms of ð‘›, the number of rectangles in the Riemann sum, and ð‘˜, the index for the rectangles in the Riemann sum.
We start by subdividing [3,11] into ð‘› equal width subintervals [ð‘¥0,ð‘¥1], [ð‘¥1,ð‘¥2], ..., [ð‘¥ð‘›âˆ’1,ð‘¥ð‘›] each of width Δð‘¥. Express the width of each subinterval Δ𑥠in terms of the number of subintervals ð‘›.
Δ𑥠=
Find the right endpoints ð‘¥1, ð‘¥2, ð‘¥3 of the first, second, and third subintervals [ð‘¥0,ð‘¥1], [ð‘¥1,ð‘¥2], [ð‘¥2,ð‘¥3] and express your answers in terms of ð‘›.
ð‘¥1, ð‘¥2, ð‘¥3 =
(Enter a comma-separated list.)
Find a general expression for the right endpoint ð‘¥ð‘˜ of the ð‘˜th subinterval [ð‘¥ð‘˜âˆ’1,ð‘¥ð‘˜], where 1 ≤ 𑘠≤ ð‘›. Express your answer in terms of 𑘠and ð‘›.
ð‘¥ð‘˜ =
Find ð‘“(ð‘¥ð‘˜) in terms of 𑘠and ð‘›.
ð‘“(ð‘¥ð‘˜) =
Find ð‘“(ð‘¥ð‘˜)Δ𑥠in terms of 𑘠and ð‘›.
ð‘“(ð‘¥ð‘˜)Δ𑥠=
Find the value of the right-endpoint Riemann sum in terms of ð‘›.
∑ð‘˜=1ð‘› ð‘“(ð‘¥ð‘˜)Δ𑥠=
Find the limit of the right-endpoint Riemann sum.
limð‘›â†’∞ (∑ð‘˜=1ð‘› ð‘“(ð‘¥ð‘˜)Δð‘¥) =