If `bar(AB) = b and bar(AC) = c` , then the length of the perpendicular from A to the line BC is

If bar(A)B=bar(b) and bar(A)C=bar(c), then the length of the perpendicular from A to the line BCis

If vec(AB) = vecb and vec(AC) =vecc then the length of the perpendicular from A to the line BC is

If vec(AB) = vecb and vec(AC) =vecc then the length of the perpendicular from A to the line BC is

If vec(AB)= vec(b) and vec(AC)= vec( c) , then the length of the perpendicular from A to the line BC is

If bar(a) is the position vector of A then the position vector of the foot of the perpendicular from A to the plane bar(r).bar(b)=bar(b).bar(c) is.

If bar(a), bar(b), bar(c) are the position vectors of the vertices A, B, C of the triangle ABC, then the equation of the median from A to BC is

If |bar(a)| = 2, |bar(b)| = 3, |bar(c )| = 4 and each of bar(a), bar(b) , bar(c ) is perpendicular to the sum of the other two vectors, then find the magnitude of bar(a) + bar(b) + bar(c ) .