The angle of elevation of the top of a tower standing on a horizontal plane from a point A is α.
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Загружено: 2026-02-11
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#TheangleofelevationofthetopofatowerstandingonahorizontalplanefromapointAisα
The angle of elevation of the top of a tower standing on a horizontal plane from a point A is α. After walking a distance d towards the foot of the tower the angle of elevation is found to be β. The height of the tower is :
a) d/cot α + cot β
b) d/cot α - cot β
c) d/cot β - cot α
d) d/cot β + cot α
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