SRMJEE 2017 Paper with key

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Question : 98 of 155

Marks: +1, -0

A unit vector coplanar with

→

i

+

→

j

+2

→

k

‌and‌

→

i

+2

→

j

+

→

k

and perpendicular to

→

i

+

→

j

+

→

k

is

−
→
j
+
→
k
1
√2
(−
→
j
+
→
k
)
1
3
(−
→
j
+
→
k
)
1
√3
(−
→
j
+
→
k
)

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