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Let |overset(to)(x) | = |overset(to)(y)|...

Let `|overset(to)(x) | = |overset(to)(y)| = |overset(to)(x) + overset(to)(y) | = 1` and if measure of the angle between `overset(to)(x) and overset(to)(y)` is `alpha`, then `sin alpha= ......`

A

`- (1)/( 2)`

B

`(sqrt3)/( 2)`

C

`- ( sqrt3)/( 2)`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
A
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