Question

Anyone good at Numerical Integration?

Answer 1

@zepdrix @dan815 @perl @ParthKohli

Answer 2

I am going to work them out and see what i get can you work them out and then check mine?

Answer 3

That's not numerical integration.

#1 is fine. Next?

Answer 4

How did you get b for #4?

Answer 5

1. A
2. B
3. A
4. B
5. ?
6. ?
7.?

Answer 6

I plugged in into my calc and that is what came out.

Answer 7

That's horrible. You should recognize it, not calculate it.

sin(x) is an odd function.
[-3,3] is symmetric about the origin.
It's zero. Don't waste any time on it.

Answer 8

oh ok.
So number 1-4 are correct I don't know how to do #5-#7

Answer 9

How many points are we earning for this Graded Exam?

Answer 10

can you help explain the other ones to me or no? I want to understand i dont want the answers I want the help to get to the answers.

Answer 11

Trapezoid with n = 4 on [0,3]

You will have to evaluate at x = 0 and what four other places?

Answer 12

I don't understand....

Answer 13

@TheCalcHater please post the questions one at a time. It's hard to know which one(s) you want to focus on.

And when I mean "one at a time", I mean that you post one question, then we help you out until you're finished with it. After that you move onto the next one. Ideally you have one question per post to avoid clutter and lag.

Answer 14

Sorry, I said [0,3]. It should have been [0,2]

You have to draw trapezoids - 4 of them - to approximate your function.

With n = 4 you will need 4 trapezoids. Since trapezoids have a pair of parallel sides each, you will need 5 measurements.



Calculate the area of each trapezoid.

Answer 15

I'm assuming you want to start with #1

if so, then the hint here is that you'll use u-substitution.

let u = x^2+3x. Calculate du and that should hopefully point you in the right direction

Answer 16

I opened a new question and tagged u guys.