Science:Math Exam Resources/Courses/MATH101/April 2012/Question 08 (a)
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Question 08 (a) 

Evaluate 
Make sure you understand the problem fully: What is the question asking you to do? Are there specific conditions or constraints that you should take note of? How will you know if your answer is correct from your work only? Can you rephrase the question in your own words in a way that makes sense to you? 
If you are stuck, check the hint below. Consider it for a while. Does it give you a new idea on how to approach the problem? If so, try it! 
Hint 

Both the Alternating Series Test (AST) and Alternating Series Esimation Theorem (ASET) DO NOT tell you the exact value of an alternating series. The key word evaluate implies that there should be a way to find the exact value of the series. Does the series look like a familiar Maclaurin series of a function evaluated at a certain point? 
Checking a solution serves two purposes: helping you if, after having used the hint, you still are stuck on the problem; or if you have solved the problem and would like to check your work.

Solution 

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Please rate my easiness! It's quick and helps everyone guide their studies. Recall that the Maclaurin series of is with radius of convergence R=1. If we put x=1/2, then we obtain the given series and hence we find 
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Current user rating: 32/100 (14 votes) Hard Easy 
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MER QGH flag, MER QGQ flag, MER QGS flag, MER RT flag, MER Tag Taylor series
