In a triangleABC, If tan A: tan B : tan ...

In a `triangleABC`, If tan A: tan B : tan C = 3:4:5, then the value of sinA.sinB.sinC is equal to:

A

`2/sqrt(5)`

B

`(2sqrt(5))/7`

C

`(2sqrt(5))/9`

D

`2/(3sqrt(5))`

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The correct Answer is:

B

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