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In a DeltaABC, angleB=(pi)/(3) and angl...

In a `DeltaABC, angleB=(pi)/(3) and angleC=(pi)/(4)` let D divide BC internally in the ratio `1:3`, then ` (sin(angleBAD))/(sin(angleCAD))` is equal to :

A

`1//sqrt(6)`

B

`1//3`

C

`1//sqrt(3)`

D

`sqrt(2//3)`

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A
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