Chapter 8: Q. 7 (page 534)
Given two sides and the included angle, the first thing to do to solve the triangle is to use the Law of Sines .
The solution is false.
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A laser beam is to be directed through a small hole in the center of a circle of radius 10 feet. The origin of the beam is 35 feet from the circle (see the figure). At what angle of elevation should the beam be aimed to ensure that it goes through the hole?
an object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up:
Area of a Segment Find the area of the segment of a circle whose radius is 5 inches, formed by a central angle of .
The hypotenuse of a right triangle is 5 inches. If one leg is 2 inches, find the degree measure of each angle.
the displacement d (in meters) of an object at time t (in seconds) is given
(a) Describe the motion of the object.
(b) What is the maximum displacement from its resting position?
(c) What is the time required for one oscillation?
(d) What is the frequency?
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