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In triangleABC, angleB = 90^@ and AB : B...

In `triangleABC, angleB = 90^@` and AB : BC = 2 : 1. The value of `sin A + cot C` is____

A

`3 + sqrt5`

B

`(2 + sqrt5)/(2sqrt5)`

C

`2 + sqrt5`

D

`3sqet5`

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