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cgalan6
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600 level sequence math question 07 Aug 2017, 12:48
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The first two terms of a sequence are -3 and 2. Subsequent odd-numbered terms are given by adding 1 to the previous term, and subsequent even-numbered terms are given by multiplying the previous term by -1. What is the sum of the first 147 terms?

a.-3
b.-2
c.-1
d. 1
e. 2

Looking for the easiest way to solve this question. Thank you in advance :)



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600 level sequence math question 12 Aug 2017, 03:03
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cgalan6
The first two terms of a sequence are -3 and 2. Subsequent odd-numbered terms are given by adding 1 to the previous term, and subsequent even-numbered terms are given by multiplying the previous term by -1. What is the sum of the first 147 terms?

a.-3
b.-2
c.-1
d. 1
e. 2

Looking for the easiest way to solve this question. Thank you in advance :)
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Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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Bunuel
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