Q11 of 138 Page 24

Mark the correct alternative in each of the following:

If is a non-zero vector of magnitude ‘a’ and λ is a non-zero scalar, then is a unit vector if


Here,


Now,is unit vector if


i.e.


i.e. |


i.e.

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Mark the correct alternative in each of the following:

The values of x for which the angle between is obtuse and the angle between and the z-axis is acute and less than π/6 are