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If the angles of elevation of a tower...

If the angles of elevation of a tower from two points distant `a` and `b` `(a > b)` from its foot and in the same straight line with it are `30o` and `60o` , then the height of the tower is `sqrt(a+b)` (b) `sqrt(a b)` (c) `sqrt(a-b)` (d) `sqrt(a/b)`

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RD SHARMA-SOME APPLICATIONS OF TRIGONOMETRY-All Questions
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