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 May 10th, 2015, 08:33 AM #1 Senior Member   Joined: Oct 2013 From: New York, USA Posts: 661 Thanks: 87 Is This True About Summation Formulas? I looked up that the summation formula for x^3 is the square of the summation formula for x. In other words (1 + 2 + 3 +…)^2 = 1^3 + 2^3 + 3^3 + … and I want to know if that means the summation formula for x^6 would be the square of the summation formula for x^2 because (x^3)^2 = x^6 and x^2 = x^2. May 10th, 2015, 12:54 PM   #2
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 Originally Posted by EvanJ I looked up that the summation formula for x^3 is the square of the summation formula for x. In other words (1 + 2 + 3 +…)^2 = 1^3 + 2^3 + 3^3 + … and I want to know if that means the summation formula for x^6 would be the square of the summation formula for x^2 because (x^3)^2 = x^6 and x^2 = x^2.
Did you try doing the arithmetic? 1^6+ 2^6= 1+ 64= 65. That is NOT (1^2+ 2^2)^2= 5^2= 25. Tags formulas, summation, true Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post outsos Applied Math 4 April 24th, 2014 04:23 PM yesiam Applied Math 9 September 21st, 2012 04:10 PM empiricus Algebra 3 December 14th, 2009 09:40 PM jonas Calculus 6 June 6th, 2009 04:04 PM symmetry Algebra 2 July 7th, 2007 07:23 AM

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