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Subjects
Mathematics State Board
Class 10
Trigonometry
Heights and Distances
5.
Multiple choice question V
Exercise condition:
1
m.
The
angle of elevation
of a cloud from a point '\(h\)' meters above a lake is \(\beta\). The angle of depression of its reflection in the lake is \(45^\circ\). The
height of location
of the cloud from the lake is:
\(h \left(\frac{1 - \tan \beta}{1 + \tan \beta} \right)\)
\(h \left(\frac{1 + \tan \beta}{1 - \tan \beta} \right)\)
\( h \tan (45^\circ - \beta)\)
none of these
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