In `!ABC` , x , y , and z are the distance of incentre from angular points A , B ,and C respectively . If`(xyz)/(abc)=(lamdar)/s` , then `lamda`=

The product of the distances of the incentre from the angular points of a triangleABC is

The distance of the incentre of the triangle ABC from A is

Prove that the distance of the incentre of Delta ABC from A is 4R sin B/2 sin C/2.

Prove that the distance of the incentre of Delta ABC from A is 4R sin B/2 sin C/2.

If x,yandz are the distances of incenter from the vertices of the triangle ABC ,respectively, then prove that (abc)/(xyz)=cot((A)/(2))cot((B)/(2))cot((C)/(2))

In a Delta ABC , the distance of orthocentre ( O ) from the vertices A, B , C are x,y,z respectively show that x+ y+ z = 2 ( r + R )

if x,y,z are the distances of the vertices of Delta ABC from its orthocentre then x+y+z ' is

If x, y, z are perpendicular distances from circumcentre to the sides of Delta^("le")ABC respectively then (xyz)/(abc){(a)/(x)+(b)/(y)+(c)/(z)}=

In a triangle ABC ,if a=3 , b=4 , c=5 then the distance between its incentre and circumcentre is

The distance of the point (x,y,z) from xy-plne is (A) x (B) |y| (C) z (D) |z|