Q20 of 138 Page 24

Mark the correct alternative in each of the following:

If are unit vectors, then the greatest value of is


If are unit vector then





Maximum value of a sin θ +bcosΘ is


Maximum value of + 2 is 4 Ans.

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18

Mark the correct alternative in each of the following:

If


19

Mark the correct alternative in each of the following:

If are unit vectors inclined at an angle θ, then the 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.


 22

Mark the correct alternative in each of the following:

If are two unit vectors inclined at an angle θ such that then