x+1 is factor of x^99+1
If today Monday,what is day after 6^99 days?
f5數學題一問?
2011-09-01 3:42 am
回答 (1)
2011-09-01 3:51 am
✔ 最佳答案
(- 1)⁹⁹ + 1 = - 1 + 1
= 0By factor theorem , x+1 is factor of x⁹⁹ + 1
Set x = 6 , 6 + 1 = 7 is a factor of 6⁹⁹ + 1 .So after 6⁹⁹ + 1 days , it is Monday again ,that means after 6⁹⁹ days is Sunday.
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110831000051KK01127