If a, b, c are the sides of a triangle ABC and |\table b , 1 , a ; a , 1 , c ; c , 1 , b|=0, then 2(\cos A+\cos B+\cos C)=

TS EAMCET 20-July-2022 Shift 1 Solved Paper

Section: Mathematics

Question : 26 of 160

Marks: +1, -0

If a,b,c are the sides of a triangle ABC and |

|=0, then 2(cos‌A+cos‌B+cos‌C)=

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