1974 AHSME Problems/Problem 29
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Problem
For let be the sum of the first terms of the arithmetic progression whose first term is and whose common difference is ; then is
Solution
The term of an arithmetic progression with a first term and a common difference is . Therefore, the sum of the first terms of such a progression is .
We now want to evaluate .
See Also
1974 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 28 |
Followed by Problem 30 | |
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