Given, two vectors \stackrel{\^}{i}-\stackrel{\^}{j} and \stackrel{\^}{i}-2 \stackrel{\^}{j}. The unit vector, coplanar with the two given vectors and perpendicular to (\stackrel{\^}{ {\i}}-\stackrel{\^}{ {\j}}) is

Correct Answer is : ±1√2(^i+^j)

{1}/{\sqrt{2}}(\stackrel{\^}{ {\i}}+\stackrel{\^}{ {\j}})

{1}/{\sqrt{5}}(2 \stackrel{\^}{ {\i}}+\stackrel{\^}{ {\j}})

\pm {1}/{\sqrt{2}}(\stackrel{\^}{ {\i}}+\stackrel{\^}{ {\j}})

COMEDK Exam 2015 Solved Paper

Question : 167 of 180

Marks: +1, -0

Given, two vectors

−

and

−2

. The unit vector, coplanar with the two given vectors and perpendicular to (

−

) is

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