KEAM 2011 Math Paper

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Question : 24 of 120

Marks: +1, -0

The projection of the vector 2

⋀

i

+a

⋀

j

−

⋀

k

on the vector

⋀

i

−2

⋀

j

+

⋀

k

on the vector

⋀

i

−2

⋀

j

+

⋀

k

is

−5

√6.

Then the value of a is equal to

1
2
−2
3
−3

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