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The angular elevation of a tower OP at a...

The angular elevation of a tower OP at a point A due south of it is `60^@` and at a point B due west of A, the elevation is `30^@`. If AB=3m, the height of the tower is

A

`3 sqrt(3) m`

B

`3sqrt(14) m`

C

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

D

`(3 sqrt(6))/(4) m`

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The correct Answer is:
D
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