Question

"ne reginred rector
[
begin{aligned}
=& x bar{a}+y bar{b}
-& x[1+2 j-hat{k}]+y[2 hat{i}+hat{j}+3 hat{t})
bar{x}=[x+2 y]^{2}+[2 x+y]_{j}-[x-3 y] hat{k}
end{aligned}
]
( 1 t i s quad 1 quad ) fo ( quad hat{i}+vec{j}+hat{k} )
[
x+2 y+2 x+y+x+3 y=0
]
[
2 x+6 y=0
]
( x+3 y=0 )
( 1 t ) is a whit vector ( (x+2 y)^{2}+(2 x+4)^{2}+[3 y-x]^{2}=1-(2) )
solving
(D) ( varepsilon ) ( bar{gamma}=frac{-3}{sqrt{62}}[overline{1}+2 bar{j}-bar{k}]+frac{1}{sqrt{62}}[2 overline{3}+bar{j}+3 bar{k}] )

# The unit vector which is orthogonal to the vector i + j +k and is coplanar with vectors î +2j - k and 2î + î + 3k, is

Solution