If \bo {a}=2 \stackrel{\^}{\bo {i}}+3 \stackrel{\^}{\bo {j}}-\stackrel{\^}{\bo {k}}, \bo {b}=\stackrel{\^}{\bo {i}}+2 \stackrel{\^}{\bo {j}}-5 \stackrel{\^}{\bo {k}}, \bo {c}=3 \stackrel{\^}{\bo {i}}+5 \stackrel{\^}{\bo {j}}-\stackrel{\^}{\bo {k}}, then a vector perpendicular to a and in the plane containing {\b} and {\c} is

Correct Answer is : −17^i−21^j−97^k

17 \stackrel{\^}{ {\i}}+21 \stackrel{\^}{ {\j}}-123 \stackrel{\^}{ {\k}}

-17 \stackrel{\^}{i}+21 \stackrel{\^}{j}-97 \stackrel{\^}{k}

-17 \stackrel{\^}{ {\i}}-21 \stackrel{\^}{ {\j}}-97 \stackrel{\^}{ {\k}}

-17 \stackrel{\^}{ {\i}}-21 \stackrel{\^}{ {\j}}+97 \stackrel{\^}{ {\k}}

COMEDK Exam 2020 Solved Paper

Question : 126 of 180

Marks: +1, -0

If a=2

−

,b=

−5

,c=3

−

, then a vector perpendicular to a and in the plane containing b and c is

Go to Question:

Prev Question

Next Question