Q. 11

Mark (√) against the correct answer in the following:

If and then the angle between and is

A.

B.

C.

D. none of these

Answer :

Given vectors and




Let the vector be




|


Let the vector be




|



= (5 7) + 0 -(4 1)


=35-4


=31


Let angle between the vectors and be θ


Using the dot product property of the vectors,



Substituting the given values in the equation,



=


⇒θ=

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