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UPSC CDS 2 2022 Math Paper

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Consider the following for the next two (02) items that follow :
The angle of elevation of a cloud at C from a point (P),H metres above the surface of a lake is 30∘. The height of the cloud from the surface of the lake is 2H metres. Let θ be the angle of depression of the reflection of the cloud in the lake from the point P.
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