If a,b and c are the sides of a triangle, then the minimum value of
2ab+c−a+2bc+a−b+2ca+b−c is
A
3
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B
9
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C
6
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D
1
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Solution
The correct option is C6 On simplifying the given equation, we get as−a+bs−b+cs−c Now considering an equilateral triangle 3×2a3a−2a =6 Hence the maximum value for the above expression is 6.