UPSC NDA Math Model Paper 7

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Question : 119 of 120

Marks: +1, -0

Consider two vectors

→

a

=m

^

i

+2

^

j

and

→

b

=4

^

i

+2

^

j

such that both vectors are perpendicular to each other. Find the value of m ?

1
-1
0
4

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