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Prove the inequality:

(1+12)(1+122)(1+12n)<3.

 Oct 17, 2017

Best Answer 

 #4
avatar+33654 
+2

How about:

 

.

 Oct 19, 2017
 #1
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Cannot prove it formally, but the LHS converges to 2.38423........., which is < 3

 Oct 18, 2017
 #2
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Can you prove that the LHS converges to 2.38423 ?

Melody  Oct 19, 2017
 #3
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As I said "Cannot prove it formally", but it does converge to 2.38423..........

https://www.wolframalpha.com/input/?i=%E2%88%8F+%5B(1%2B2%5E-n),+n,+1,+1000%5D

∏ [(1+2^-n), n, 1, 1000] ≈2.384231029031371724149899288678397238772...............etc.

 Oct 19, 2017
 #4
avatar+33654 
+2
Best Answer

How about:

 

.

Alan Oct 19, 2017
 #5
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Thank you Alan.

 Oct 19, 2017

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