The vertices of a triangle are `A(1,1,2),B(4,3,1)` and `C(2,3,5)` Vectors representing the internal & external bisectors of the angle A are:

The vertices of a triangle are A(1,1,2),B(4,3,1)a n dC(2,3,5) . A vector representing the internal bisector of the angle A is (a)hat i+ hat j+2 hat k (b) 2 hat i+2 hat j- hat k (c)2 hat i+2 hat j- hat k (d) 2 hat i+2 hat j+ hat k

The vertices of a triangle are A(1,1,2),B(4,3,1) and C(2,3,5). The vector representing internal bisector of the angle A is

Vertices of a triangle are A(3, 1, 2), B(1, -1, 2) and C(2, 1, 1) . Area of the triangle will be :

The vertices of a triangle are A(-1,-7),B(5,1) and C(1,4). The equation of the bisector of the angle ABC

The vertices of a triangle are (A(-1,-7),B(5,1), and C(1,4). The equation of the bisector of /_ABC is