Question

$\huge {\bold {Question}}}$

The angel of elevation top of the tower as observed from a point on the ground is $\alpha$ and on moving 'a' metre towards the tower. The angel of elevation is $\beta$. Probe that :
$h = \frac{a.tan \alpha. \: tan \beta }{tan \beta - tan \alpha }$
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Answer 1

Answer:

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Answer 2

See the above attached attachment....!