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Let a vertical tower AB have its end A on the level ground. Let C be the mid-point of AB and P be a point on the ground such that AP = 2AB. If `sqrt(BPC = beta`, then tan `beta` is equal to

A

`(6)/(7)`

B

`(1)/(4)`

C

`(2)/(9)`

D

`(4)/(9)`

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The correct Answer is:
C
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