Vergleichssatz/Major-, Minorantenkriterium
About points...
We associate a certain number of points with each exercise.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
About difficulty...
We associate a certain difficulty with each exercise.
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
Question
Solution
Short
Video
\(\LaTeX\)
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Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Exercise:
abcliste abc Was besagt das Kriterium? abc Beweis. abcliste
Solution:
abcliste abc Seien _k^infty a_k _k^infty b_k zwei Reihen mit der Eigenschaft leq a_k leq b_k für alle kin mathbbN. Dann gilt _k^infty a_k leq _k^infty b_k und insbesondere gelten die Implikationen _k^infty b_k textkonvergent Longrightarrow _k^infty a_k textkonvergent b_k ist ja grösser Majorante und beschränkt quasi von oben deshalb kann a_k da glqq nicht drübergrqq und _k^infty a_k textdivergent Longrightarrow _k^infty b_k textdivergent a_k ist ja kleiner Minorante und drückt quasi von unten deshalb kann b_k glqq nicht stehenbleibengrqq abc Aus a_k leq b_k für alle k in mathbbN folgt _k^infty a_k leq _k^infty b_k für alle n in mathbbN. Somit gilt nach Monotonie der Folge der Partialmen _k^infty a_k textsupleft_k^infty a_k|nin mathbbNright leq textsupleft_k^infty b_k|nin mathbbNright _k^infty b_k abcliste
abcliste abc Was besagt das Kriterium? abc Beweis. abcliste
Solution:
abcliste abc Seien _k^infty a_k _k^infty b_k zwei Reihen mit der Eigenschaft leq a_k leq b_k für alle kin mathbbN. Dann gilt _k^infty a_k leq _k^infty b_k und insbesondere gelten die Implikationen _k^infty b_k textkonvergent Longrightarrow _k^infty a_k textkonvergent b_k ist ja grösser Majorante und beschränkt quasi von oben deshalb kann a_k da glqq nicht drübergrqq und _k^infty a_k textdivergent Longrightarrow _k^infty b_k textdivergent a_k ist ja kleiner Minorante und drückt quasi von unten deshalb kann b_k glqq nicht stehenbleibengrqq abc Aus a_k leq b_k für alle k in mathbbN folgt _k^infty a_k leq _k^infty b_k für alle n in mathbbN. Somit gilt nach Monotonie der Folge der Partialmen _k^infty a_k textsupleft_k^infty a_k|nin mathbbNright leq textsupleft_k^infty b_k|nin mathbbNright _k^infty b_k abcliste
Meta Information
Exercise:
abcliste abc Was besagt das Kriterium? abc Beweis. abcliste
Solution:
abcliste abc Seien _k^infty a_k _k^infty b_k zwei Reihen mit der Eigenschaft leq a_k leq b_k für alle kin mathbbN. Dann gilt _k^infty a_k leq _k^infty b_k und insbesondere gelten die Implikationen _k^infty b_k textkonvergent Longrightarrow _k^infty a_k textkonvergent b_k ist ja grösser Majorante und beschränkt quasi von oben deshalb kann a_k da glqq nicht drübergrqq und _k^infty a_k textdivergent Longrightarrow _k^infty b_k textdivergent a_k ist ja kleiner Minorante und drückt quasi von unten deshalb kann b_k glqq nicht stehenbleibengrqq abc Aus a_k leq b_k für alle k in mathbbN folgt _k^infty a_k leq _k^infty b_k für alle n in mathbbN. Somit gilt nach Monotonie der Folge der Partialmen _k^infty a_k textsupleft_k^infty a_k|nin mathbbNright leq textsupleft_k^infty b_k|nin mathbbNright _k^infty b_k abcliste
abcliste abc Was besagt das Kriterium? abc Beweis. abcliste
Solution:
abcliste abc Seien _k^infty a_k _k^infty b_k zwei Reihen mit der Eigenschaft leq a_k leq b_k für alle kin mathbbN. Dann gilt _k^infty a_k leq _k^infty b_k und insbesondere gelten die Implikationen _k^infty b_k textkonvergent Longrightarrow _k^infty a_k textkonvergent b_k ist ja grösser Majorante und beschränkt quasi von oben deshalb kann a_k da glqq nicht drübergrqq und _k^infty a_k textdivergent Longrightarrow _k^infty b_k textdivergent a_k ist ja kleiner Minorante und drückt quasi von unten deshalb kann b_k glqq nicht stehenbleibengrqq abc Aus a_k leq b_k für alle k in mathbbN folgt _k^infty a_k leq _k^infty b_k für alle n in mathbbN. Somit gilt nach Monotonie der Folge der Partialmen _k^infty a_k textsupleft_k^infty a_k|nin mathbbNright leq textsupleft_k^infty b_k|nin mathbbNright _k^infty b_k abcliste
Contained in these collections
| Title | Creator | Matched on |
|---|---|---|
| Verdichtung Reihen / Cauchy-Kondensationstest | rk | tags |
| Leibniz-Kriterium | rk | tags |
| Indexverschiebung Reihen | rk | tags |
| Cauchy-Wurzelkriterium | rk | tags |
| Zusammenfassen von benachbarten Gliedern | rk | tags |

