Two vectors ` hat j + hat k` and ` 3 hat i - hat j + 4 hat k` represents the two side vectors ` vec AB and vec AC` respectively of `Delta ABC` Find the length of median from A.

The two vectors hat j+ hat k and 3 hat i- hat j+4 hat k represent the two side vectors vec A B and vec A C respectively of triangle A B Cdot Find the length of median the through Adot

The two vectors hat j+hat k and 3hat i-hat j+4hat k represent the two side vectors vec AB and vec AC respectively of triangle ABC .Find the length of median the through A

If the vectors 2hat j +hat k and 3 hat i- hat j +4 hatk represent the two sides AB and AC respectively of a triangle ABC , then the length of the median through A is,

The two vectors hat j+ hat k and 3 hat i- hat j+4 hat k represent the two sides A B and A C , respectively of triangleABC . Find the length of the median through A.

The two vectors hat j+hat k and 3hat i-hat j+4hat k represent the two sides AB and AC, respectively of a 2 ABC.Find the length of the median through A.

If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) , then find the unit vector vec a

If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) , then find the unit vector vec a

If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) , then find the unit vector vec a

The position vectors of the vertices of DeltaABC are 3 hat i - 4 hat j - 4 hat k , 2 hat i - hat j + hat k and hat i - 3 hat j - 5 hat k respectively. (i) Find vec (AB), vec(BC) and vec(CA) . (ii) Prove that DeltaABC is a right angled triangle. (iii) Find the unit vector perpendicular to both vec (AB) and vec(BC) .