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From the top and bottom of a building of...

From the top and bottom of a building of height h metres, the angles of elevation of the top of a tower are ` alpha and beta` respectively. Then the height of the tower is :

A

`(h cos alpha sin beta)/(sin (beta - alpha ))`

B

`(h cos beta sin alpha )/(sin (beta - alpha ))`

C

`(h cos alpha sin beta)/(sin (beta+ alpha ))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
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