KCET 2015 Math Solved Paper

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Question : 13 of 60

Marks: +1, -0

If

→

a

=

⋀

i

+2

⋀

j

+2

⋀

k

,|

→

b

|=5 and the angle between

→

a

and

→

b

is

π

6

, then the area of the triangle formed by these two vectors as two sides is

15
2
15
15
4
15√3
2

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