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If the angles of elevation of a tower fr...

If the angles of elevation of a tower from two points distance a and b `(agtb)` from its foot and in the same straight line from it are `30^@` and `60^@`, then the height of the towers

A

`sqrtab`

B

`sqrta+b`

C

`sqrta-b`

D

`sqrt(a/b`

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The correct Answer is:
A
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