Q9 of 181 Page 1080

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

The angle between the vectors and is


Given vectors and


Magnitude |



Magnitude of |


Property:




(


Then



= (1 x 3)+(-2 x -2)+(3 x 1)


=3+4+3


= 10


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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