Grade 12Algebra
a,b,c belongs R and a2+b2+c2 =1 then the maximum value of ab+bc+ca
a,b,c belongs R and a2+b2+c2 =1 then the maximum value of ab+bc+ca
1 Answer
Chetan Mandayam Nayakar
ab+bc+ca=(1/2)((a+b+c)2-(a^2 +b^2+c^2)), use AM GM inequality
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