If \bo {p}=\stackrel{\^}{i}+\stackrel{\^}{j}, \bo {q}=4 \stackrel{\^}{k}-\stackrel{\^}{j} and \bo {r}=\stackrel{\^}{i}+\stackrel{\^}{k}, then the unit vector in the direction of 3 \bo {p}+\bo {q}-2 \bo {r} is

Correct Answer is : 13(^i+2^j+2^k)

\frac{1}{3}(\stackrel{\^}{i}+2 \stackrel{\^}{j}+2 \stackrel{\^}{k})

\frac{1}{3}(\stackrel{\^}{i}-2 \stackrel{\^}{j}-2 \stackrel{\^}{k})

\frac{1}{3}(\stackrel{\^}{i}-2 \stackrel{\^}{j}+2 \stackrel{\^}{k})

\stackrel{\^}{i}+2 \stackrel{\^}{j}+2 \stackrel{\^}{k}

COMEDK Exam 2022 Solved Paper

Question : 140 of 180

Marks: +1, -0

If p=

,q=4

−

and r=

, then the unit vector in the direction of 3p+q−2r is

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