Tower Elevation Angle Trigonometry (Jee Mains) | ExamDuo
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Heights and Distances
Medium
Tower Elevation Angle Trigonometry
The angle of elevation of the top of a tower from a point A due north of it is
α
and from a point B at a distance of 9 units due west of
A
is
cos
−
1
(
3
√
13
)
. If the distance of the point
B
from the tower is 15 units, then
cot
α
is equal to :
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SELECT ONE OPTION
A
6
5
B
9
5
C
4
3
D
7
3
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