Editor
Editor
 Sep 18, 2022
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The angle of depression of a point A on the ground from the top of the tower is $30^{\circ}$, then the angle of elevation of the top of the tower at the point A is
Difficulty: Easy
A: 
$60^{\circ}$
B: 
$40^{\circ}$
C: 
$41^{\circ}$
D: 
$30^{\circ}$
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NETNUST Entry TestMathematicsFundamentals of Trignometry