If beta is one of the angles between the...

If `beta` is one of the angles between the normals to the ellipse, `x^(2) + 3y^(2) = 9` at the points `(3cos theta, sqrt(3) sin theta) and (-3sin theta, sqrt(3) cos theta), theta in (0, (pi)/(2))," then "(2 cot beta)/(sin 2 theta)` is equal to

A

`(2)/(sqrt(3))`

B

`(sqrt(3))/(4)`

C

`sqrt(2)`

D

`(1)/(sqrt(3))`

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The correct Answer is:

A

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