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A tower, of x metres high, has a flagsta...

A tower, of x metres high, has a flagstaff at its top. The tower and the flagstaff subtend equal angles at a point distant y metres from the foot of the tower. Then the length of the flagstaff in metres in

A

` ( y(x^(2) - y^(2)))/( x^(2) +y^(2))`

B

` ( x( y^(2) +x^(2)))/( y^(2)- x^(2))`

C

` (x( x^(2) +y^(2)))/( x^(2) - y ) `

D

` ( x(x^(2)-y^(2)))/( x^(2) + y^(2))`

Text Solution

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The correct Answer is:
B
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