Bart H.

asked • 04/06/21

Calculus 1- Question involving Riemann Sums

Use a calculator or computer to compute the left and right endpoint Riemann sums for the given function over the given interval with the specified number of equal intervals.

(a) f(x) = x+1, [−2,3], n = 25

Inactive Tutor

This requires basic arithmetic. What is preventing you from doing the calculations?
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04/06/21

Bart H.

right so I think I was able to do the calculations and got an answer of 140 to be on the left and 135 to be the right
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04/06/21

Bart H.

oh sorry its the opposite 140 to the right and 135 to the left
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04/06/21

Inactive Tutor

Never let a problem intimidate you. Push through and you shall learn.
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04/06/21

Inactive Tutor

140 and 135 are too high. Visit this graph to see if it helps you understand what is going on. The width of each rectangle is 1/5. For left hand endpoints you need to calculate f(left) for each rectangle and multiply by 1/5. desmos.com/calculator/y0j9hsbn73
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04/06/21

Bart H.

ok so I am inputting Σ(2+i/5+1,i,1,25) like this for the right hand side into my calculator and from some reason I keep getting 140
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04/06/21

Bart H.

First calculate ∆x which is b-a/n: (3-(-2))/25 = 1/5 Then calculate x_i which is 2 + i∆x: 2 + i * 1/5 = 2 + i/5
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04/06/21

Bart H.

and these are the steps I took to find the right
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04/06/21

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