Posted by Anonymous on Monday, February 11, 2013 at 6:15am.
If in a triangle ABC,
c(a+b) Cos B/2 =b(c+a) Cos C/2
then the triangle is :
1. isosceles
2. Right angled
3. isosceles or right angled
4. none of these
I want the explanation

mathsurgently needed  Ritika, Friday, July 29, 2016 at 1:43am
1. Isosceles
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