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Grade: 12 
        
a,b,c  belongs R and a2+b2+c2 =1 then the maximum value of ab+bc+ca
7 years ago

Answers : (1)

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Chetan Mandayam Nayakar
312 Points 
							
ab+bc+ca=(1/2)((a+b+c)2-(a^2 +b^2+c^2)), use AM GM inequality
7 years ago
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