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Compute

SOLVED!

1000n=11n2+n.

 Jun 7, 2019
edited by FlyEaglesFly  Jun 7, 2019
 #1
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1n2+n=1n(n+1)=An+Bn+1 A+B=0, A=1, B=1 1n2+n=1n1n+1

 

1000n=1 (1n1n+1)= (112)+(1213)+(1314)++(1100011001)= 111001=10001001

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 Jun 7, 2019
 #2
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Thanks

 Jun 8, 2019

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