70.The vector č, directed along the internal bisector of the anlge between the vectorsā=71-4j- 4k and b=-2i-]+ 2k with |= 56 is:(A) (1-7]+2k(B) (si +5j-24) (c) (+7]+26) ((51+55+)

Let vector of magnitude 3 sqrt(6) along the internal bisector of the angle between the vectors 4i - 7j + 4k and i + 2j - 2k is

A vector of magnitude 2 along a bisector of the angle between the two vectors 2i2j+k and i+2j-2k is

The vector vec x directed along the bisector of the angle between the vector vec a=7vec i-4vec j-4vec k and vec b=-2vec i-vec j+2vec k if |x|=45 is

The sine of the angle between the vectors I + 3j - 2k, 2i - 4j - k is

Find the sine of the angle between the vectors a and b, if a=i-j+k" and "b=-i+j+2k .

The vector vec(r) , directed along the external bisector of the angle between the vectors vec(a) = 7hat(i) - 4hat(j) + 4hat(k) and vec(b) = 2hat(i) - hat(j) + 2hat(k) with |vec(r)| = 5sqrt6 , is

if theta angle between two vectors 2i+j+7k and i+5j+k then cos theta

If the vector vec v with magnitude sqrt(6) is along the intemal bisector of the angle between vec a=7i-4j-4k and vec b=-2i-j+2k then vec v.vec a equals