Solve Apps: Other Trigonometric Functions
-The angle of elevation from the top of a house to a plane flying 7200 meters above the house is $x$ radians. If $d$ represents the horizontal distance, in meters, of the plane from the house, express $d$ in terms of a trigonometric function of $x$.
A) $d = 7200 \cot x$
B) $\mathrm { d } = \frac { 7200 } { \cot x }$
C) $d = 7200 \tan x$
D) $d = 7200 \sec x$

Question

Quizplus · Accepted Answer

The angle of elevation $x$ forms a right triangle with the height of the plane above the house (7200 meters) as the opposite side and the horizontal distance $d$ as the adjacent side. The cotangent of an angle in a right triangle is the adjacent side over the opposite side, so $d = 7200 \cot x$.

Solve Apps: Other Trigonometric Functions -The Angle of Elevation from the Top

Solve Apps: Other Trigonometric Functions
-The Angle of Elevation from the Top