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If hata and hatb are two unit vectors i...

If `hata` and `hatb` are two unit vectors inclined at an angle `theta`, then the value of `|hata-hatb|` is -

A

`2"sin"(theta)/(2)`

B

`2"cos"(theta)/(2)`

C

`2sin theta`

D

`2cos theta`

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The correct Answer is:
A
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