Prove by pmi that( n^7) - n is divisible by 7

1.	Prove by pmi that( n^7) - n is divisible by 7
Answer» _Ever wondered that sum of positive numbers could be a negative number?__But Ramanujan - \'The man who knew Infinity\' proposed that__1+2+3+4+5..... = -1/12__To watch how is it possible, kindly watch video on my you tube channel from link given below:-_https://youtu.be/Eu9lM3S41wg_If possible kindly like, comment, share & subscribe my channel._REGARDSMANEET SINGH

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