If vec(P) = (k,2,3) and vec(Q) = (0,3,k) and vec(P) bot vec(Q) , then find the value of k .

If vec(P) = (k,2,3) and vec(Q) = (0,3,k) and vec(P) bot vec(Q) , then

1.	If vec(P) = (k,2,3) and vec(Q) = (0,3,k) and vec(P) bot vec(Q) , then find the value of k .
Answer» <P> SOLUTION :`vec(P) bot vec(Q) rArr vec(P) . vec(Q) = 0 ` ` :. (k,2,3).(0,3,k) = 0 ` `:. 0+6 +3K = 0 ` ` :. 3k = -6` ` :. k = -2 `