If the sides of triangle ABC are such that `a=4 b=5,c=6,` then the ratio in which incentre divide the angle bisector of B is

If in triangle ABC, a = 3, b = 4, c = 5 then find the ratio in which incentre divides the angle bisector BE

If in triangle ABC,a=3,b=4,c=5 then find the ratio in which incentre divides the angle bisector BE

If the sides of Delta ABC are a = 4, b = 6 , c = 8 , then show that 4 cos B + 3 cos C = 2.

If a, b, c are the sides of the triangle ABC such that a^(4) +b^(4) +c^(4)=2c^(2) (a^(2)+b^(2)), then the angle opposite to the side c is-