To get a good view of a person in front of a teller's window, it is determined that a surveillance camera at a bank should be directed at a point 15.5 ft to the right and 6.75 ft below a camera. At what angle of depression should the camera be directed?

To get a good view of a person in front of a teller's window, it is determined that a surveillance camera at a bank should be directed at a point 15.5 ft to the right and 6.75 ft below a camera. At what angle of depression should the camera be directed?

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

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To get a good view of a person in front of a teller's
window, it is determined that a surveillance camera
at a bank should be directed at a point 15.5 ft to the
right and 6.75 ft below a camera.
At what angle of depression should the camera be directed?

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