NDA Math Vector Algebra

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Question : 46 of 101

Marks: +1, -0

If

→

a

and

→

b

are vectors such that |

→

a

|=2,|

→

b

|=7 and

→

a

×

→

b

=3

⋀

i

+2

⋀

j

+6

⋀

k

,then what is the acute angle between

→

a

and

→

b

[NDA I 2018]

30°
45°
60°
90°

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