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Which test for convergence is the best for which series?

In IB Calculus Option you are introduced to number of different tests. They are Divergence Test, Comparison Test (simple and limit forms), Absolute Convergence Test, Alternating Series Test, Ratio Test an...

Answered by Jakub W. • Further Mathematics tutor

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Three girls and four boys are seated randomly on a straight bench. What is the probability that the boys sit together and the girls sit together.

To calculate the desired probability we need to calculate the number n of arrangements of the kids such that the girls sit together and the bous sit together and then calculate the total number m of arran...

Answered by Jakub W. • Maths tutor

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Do I have to be good at Maths to achieve good results in IB Economics?

The answer is a definite NO. In the IB course, the focus is really on the basic understanding of different economic theories and how they are applicable in the real world. Only if you tak...

Answered by Ambrose C. • Economics tutor

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Which conditions led to the collapse of the German war effort in the First World War ?(as is part of the Causes, Practices and Effects of War part of the HL Course)

Outline the four major reasons for the collapse of the German war effort, in a good essay each of these should take up about a paragraph each, with each paragraph following the PEA form (Point, Evidence, ...

Answered by Joseph W. • History tutor

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Let Sn be the sum of the first n terms of the arithmetic series 2 + 4 + 6 + ... i) Find S4

Firstly look for key terms in the question, identifying that we are going to be finding the sum of n terms, and it is an arithmetic series. This allows us to know which e...

Answered by Sydney L. • Maths tutor

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