KEAM 2012 Math Paper

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Question : 93 of 120

Marks: +1, -0

A vector of magnitude 7 units, parallel to the resultant of the vectors

−

a

=2

⋀

i

−3

⋀

j

−2

⋀

k

and

−

b

=−

⋀

i

+2

⋀

j

+

⋀

k

, is

7
√3
(
⋀
i
+
⋀
j
+
⋀
k
)
7(
⋀
i
−
⋀
j
−
⋀
k
)
7
√3
(
⋀
i
−
⋀
j
+
⋀
k
)
7
√3
(
⋀
i
−
⋀
j
−
⋀
k
)
7(
⋀
i
+
⋀
j
−
⋀
k
)

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