Math, asked by Prakhar2908, 11 months ago

Pls answer this Q.
Solution is needed urgently.
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Answered by cutie7777
4
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PLEASE REFER TO THE ABOVE ATTACHMENT FOR THE SOLUTION⤴

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Answered by Anonymous
4

First of all :

Grouping of terms :

1^{1997} + 2^{1997} + ................ 1996^{1997}\\\\\implies 1^{1997}+1996^{1997}+2^{1997}+1995^{1997}+........

This is very interesting .

As a class 10 boy , I will not do it complexly .

a^n+b^n is always divisible by a + b when n is odd.

Obviously n = 1997 is odd .

a^n+b^n is divisible by 1996 + 1 = 1997.

So every number in the series is divisible by 1997 .

Hence we proved it.


Prakhar2908: It should be when n is odd
Prakhar2908: not a+b
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