[" Q.124Write the value of "p" for "v" hich "vec a=3vec i+2j+9bar(k)" and "vec b=vec i+pbar(j)+3bar(k)" nre "],[" parallel vectors,"]

Write the value of p for which vec a=3 hat i+2 hat j+9 hat k\ a n d\ vec b= hat i+p hat j+3 hat k are parallel vectors.

Write the value of p for which vec a=3hat i+2hat j+9hat k and vec b=hat i+phat j+3hat k are parallel vectors.

Find the value of: (vec j xxvec k) * (3vec i + 2vec j-vec k)

Find the value of p for which the vectors vec a=3hat i+2hat j+9hat k and vec b=hat i+phat j+3hat k are (i) perpendicular (ii) parallel

Find the angle between the vectors vec(i) + 2vec(j) + 3vec(k) and 3vec(i) - vec(j) + 2vec(k) .

Find the angle between the vectors : vec(a)=3vec(i)-2vec(j)+vec(k) and vec(b)=vec(i)-2vec(j)-3vec(k)

If vec a=i+j,vec b=j+k and vec c=k+i write unit vectors parallel to vec a+vec b-2vec -

Find the unit vector in the direction of the vector vec a + vec b if vec a =vec i +2 vec j + 3 vec k and vec b = 2 vec i + 3 vec j + 5 vec k .

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