If A(-2,1),B(2,3) and C(-2,-4) be the vertices of a `triangle ABC`, show that `tan B=(2)/(3)`

If A(1, 2), B(-3, 2) and C(3, -2) be the vertices of a A ABC, show that tan A=2" "tan B=(2)/(3)" " (iii) tan C=(4)/(7)

A(2, 3, 1), B(-2, 2, 0) and C(0, 1, -1) are the vertices of the triangle ABC. Show that the triangle ABC is right -angled.

If A (-1, 4,2), B(3, -2, 0) and C(1,2,4) are the vertices of the triangle ABC, then the length of its median through the vertex A is-

If A(1, 4, 2), B(-2, 1, 2) and C(2, -3, 4) are the vertices of the triangle ABC, then find the angles of the triangle ABC.

For triangle ABC, show that "tan"(B+C)/2="cot"A/2

A(-3, 1), B(4,4) and C(1, -2) are the vertices of a triangle ABC. Find: the equation of altitude AE.

A(-3, 1), B(4,4) and C(1, -2) are the vertices of a triangle ABC. Find: the equation of median BD.

If A = (3, 2, 5), B = (3, 3, 5) and C = (3, 4, 8) are the vertices of a triangle ABC, then its centroid is

If A (1,-2), B (-2,3) and C(2,-5) are the vertices of Delta ABC, then the equation of the median BE is

If A , B and C are interior angles of a triangle ABC, then show that tan ((A+B) /(2)) =cot (C/2)