WBJEE 2020 Math Solved Paper

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Question : 28 of 75

Marks: +1, -0

The unit vector in ZOX plane, making angles 45° and 60° respectively with

→

α

=2

^

i

+2

^

j

−

^

k

and

→

β

=

^

j

−

^

k

is

1
√2
^
i
+
1
√2
^
j
1
√2
^
i
−
1
√2
^
k
1
√2
^
i
−
1
√2
^
j
1
√2
^
i
+
1
√2
^
k

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