Q19 of 138 Page 24

Mark the correct alternative in each of the following:

If are unit vectors inclined at an angle θ, then the value of is



Given that,





Ans.

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Mark the correct alternative in each of the following:

The vectors are perpendicular, if


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Mark the correct alternative in each of the following:

If


20

Mark the correct alternative in each of the following:

If are unit vectors, then the greatest value of is


 21

Mark the correct alternative in each of the following:

If the angle between the vectors is acute, then x lies in the interval.