Science talk:Math Exam Resources/Courses/MATH105/April 2013/Question 02 (b)

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Motivate the ratio test. Add details to solution022:44, 5 March 2014

Motivate the ratio test. Add details to solution

Would it be possible to motivate why the ratio test is a good choice?

Also, please add more details on how you resolved the (k+1)! and (2(k+1))! terms from line 2 to 3, and state that you divide top and bottom by k^2 from line 3 to 4.

Bernhard Konrad (talk)22:44, 5 March 2014