A) \[l\,\,\tan \,\beta \,\cot \,\alpha \]
B) \[l\,\,\tan \,\alpha \,\cot \,\beta \]
C) \[l\,\,\tan \,\,\alpha \,\,\tan \,\beta \]
D) \[l\,\,\cot \,\,\alpha \,\,\cot \,\beta \]
Correct Answer: B
Solution :
From figure, we can deduce\[H=l\tan \alpha \cot \beta \].You need to login to perform this action.
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