WBJEE 2022 Math Solved Paper

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Question : 28 of 75

Marks: +1, -0

If

→

a

=

∧

i

+

∧

j

−

∧

k

,

→

b

=

∧

i

−

∧

j

+

∧

k

and

→

c

is unit vector perpendicular to

→

a

and coplanar with

→

a

and

→

b

, then unit vector

→

d

perpendicular to both

→

a

and

→

c

is

±‌
1
√6
(2
∧
i
−
∧
j
+
∧
k
)
±‌
1
√2
(
∧
j
+
∧
k
)
±‌
1
√6
(
∧
i
−2
∧
j
+
∧
k
)
±‌
1
√2
(
∧
j
−
∧
k
)

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