[H_(Ifr)rarr(hat i+yhat j+zhat k," then find "(vec r timeshat i)*(vec r timeshat jmath)+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) = x hat(i) + y hat(j) + z hat(k) , then 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 )=x hat(i)+y hat(j)+x hat(k) , find : (vec(r )xx hat(i)).(vec(r )xx hat(j))+xy .

If bar(a)=2hat i-hat j+2hat k then the value of |bar(a)timeshat i|^(2)+|bar(a)timeshat j|^(2)+|bar(a)timeshat k|^(2)=

If bar(a)=3hat i+4hat j+5hat k then the value of (bar(a)timeshat i)^(2)+(bar(a)timeshat j)^(2)+(bar(a)timeshat k)^(2) is ......

[" If "bar(a)=3hat i+4hat j+5hat k" ,then the value of "],[(bar(a)timeshat i)^(2)+(bar(a)timeshat j)^(2)+(bar(a)timeshat k)^(2)" is "....],[" O "100],[" 110"],[" Q "90],[85]

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