Prove the formula for the sum of the first
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- Use the formula for the sum of the first ii terms of an arithmetic series to find the sum of the first eleven terms of the arithmetic series 2.5,4,5.5,arrow_forwardFind the sum of the first five terms of the sequence with the given general term. an=3n2arrow_forwardFind the sum of the first 50 terms of the arithmetic sequence whose general term is an=4n+3.arrow_forward
- Write the first four terms of the sequence defined by the explicit formula a an=10n+3 .arrow_forwardCalculate the first eight terms of the sequences an=(n+2)!(n1)! and bn=n3+3n32n , and then make a conjecture about the relationship between these two sequences.arrow_forwardWrite the first four terms of the sequence defined by the explicit formula an=n!n(n+1).arrow_forward
- Find the 11th term of the arithmetic sequence 3a2b,a+2b,-a+6b,.... .arrow_forwardFind the 10th term of the arithmetic sequence that begins with 7 and 15.arrow_forwardWhat happens to the terms an of a sequence when there is a negative factor in the formula that is raised to a power that includes n? What is the term used to describe this phenomenon?arrow_forward
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