Answers

2015-01-22T21:23:03+05:30

[x^n - a^n] is completely divisible by [x+a] (when n is even0

so, 17^200 - 1^200 is completely divisible by 17+1 i.e 18

17^200 -1 is completely divisible by 18

Hence we get 1 as remainder on dividing b/s by 18


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