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UPSC NDA II 2011 Mathematics Paper

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Question : 58

Total: 120

If

is the unit vector perpendicular to both the vectors

, then what is another unit vector perpendicular to both the vectors

?

→
c
×
→
a
→
c
×
→
b
−‌
(
→
a
×
→
b
)
|
→
a
×
→
b
|
‌
(
→
a
×
→
b
)
|
→
a
×
→
b
|

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