+0  
 
0
230
1
avatar

let a+b+c+d=1. prove that a^2+b^2+c^2+d^2 >= 1/4.

 

can someone help me start this problem

 Sep 18, 2022
 #1
avatar+289 
+1

Use the Cauchy Schwarz inequality!

 Sep 18, 2022

2 Online Users

avatar
avatar