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| Zero is the last digit of S (Posted on 2018-06-16) |
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Let S = a^5 + b^5 + c^5 + d^5, and
a,b,c,d are integers fulfilling a+b+c+d=0
Prove that S must be divisible by 10.
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No Solution Yet
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Submitted by Ady TZIDON
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Rating: 5.0000 (1 votes)
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Subject |
Author |
Date |
 | re: Answer | Kelsey Johnson | 2018-06-28 06:06:31 |
| re: Answer | Jer | 2018-06-17 17:10:27 |
 | Answer | Math Man | 2018-06-16 19:53:51 |
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