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Let \(a, b, c, d\) be nonnegative real numbers such that \(a + b + c + d = 1\). Find the minimum value of \(a^2 + b^2 + c^2 + d^2\).

 Nov 10, 2019
 #1
avatar+142 
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What a coincidence!

 

This problem is in my AoPS Intermediate Algebra homework that I was just going to attempt!!!

 Nov 10, 2019
 #2
avatar+2833 
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Oh dang I haven't learned whatever Cauchy-Schwarz is.

 

I mean, I am taking the AMC 8 next friday, I think I should just focus on the basic things right now...

CalculatorUser  Nov 10, 2019
 #3
avatar+142 
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Hmmm.....

MagicKitten  Nov 10, 2019
 #4
avatar+2833 
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The way I get good at math is to grind Web2.0Calc.com

 

which is kind of weird.

CalculatorUser  Nov 10, 2019
 #5
avatar+142 
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OoooOooOooOooOF

MagicKitten  Nov 10, 2019

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