UPSC NDA 2 2017 Mathematics Solved Paper

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Question : 46 of 120

Marks: +1, -0

If

⋀

a

and

⋀

b

are two unit vectors, then the vector (

⋀

a

+

⋀

b

)×(

⋀

a

×

⋀

b

) is parallel to

[NDA II 2017]

(
⋀
a
−
⋀
b
)
(
⋀
a
+
⋀
b
)
(2
⋀
a
−
⋀
b
)
(2
⋀
a
+
⋀
b
)

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