[" 52.If "vec r=xhat i+yhat j+zhat k," find "(vec r timeshat i)*(vec r timeshat j)+xy.],[" Delhi "2015]

if vec r=xhat i+yhat j+zhat k find (vec r xxhat i)*(vec r xxhat j)+xy

If vec r= x hat i+y hat j+z hat k , find ( vec r*hat i ).( vec r*hat j ) +xy.

If vec r=xhat i+yhat j+zhat i, find the value of (vec r xxhat i)vec r xxhat j+xy

If vec r=xi+yj+zk, find (vec r xx i)*(vec r xx j)+xy

If vec(r )=x hat(i)+y hat(j)+x hat(k) , find : (vec(r )xx hat(i)).(vec(r )xx hat(j))+xy .

If vec(r )=x hat(i)+y hat(j)+x hat(k) , find : (vec(r )xx hat(i)).(vec(r )xx hat(j))+xy .

If vec r = xvec i + yvec j + zvec k then (vec r xxvec i) * (vec r xxvec j) + xy is

If vec r*hat i=vec r*hat j=vec r*hat k and |vec r|=3, then find the vector vec r .

If vec(r) = x hat(i) + y hat(j) + z hat(k) , then find (vec(r) xx hat(i)).(vec(r) xx hat(j)) + xy .

Let vec a=hat i+hat j+hat k and vec r=xhat i+yhat j+zhat k be a variable vector such that vec r*hat i,vec r*hat j and vec r*hat k be positive integers. If vec r*hat j>=3 and vec r*vec a<=12, then the total number of possible vec r is equal to