SOLUTION: Hi, please help me turn this series into summation notation. Thank you in advance.
1. 2!/7 + 3!/14 + 4!/21 + ... + (n-1)!/7n
2. {{{ -1/5 + 8/25 - 27/125 + 64/625 }}}
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Question 1062323: Hi, please help me turn this series into summation notation. Thank you in advance.
1. 2!/7 + 3!/14 + 4!/21 + ... + (n-1)!/7n
2.
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
I like the last term's being (n+1)!
Then I can write sum from n=1 to n of (n+1)!/7n. Is the last term (n+1)!?
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The second term is the sum from n=1 to 4 of -1^(n)*(n^3)/5^(n).
The -1^(n) will alternately be negative-positive, beginning with negative.
Answer by MathTherapy(10555) (Show Source): You can put this solution on YOUR website!
Hi, please help me turn this series into summation notation. Thank you in advance.
1. 2!/7 + 3!/14 + 4!/21 + ... + (n-1)!/7n
2.
1.
2.
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