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Chapter 8: Q. 8 (page 527)
Triangles for which two sides and the angle opposite one of them are known (SSA) are referred to as the _________ _____.
The solution is ambiguous case.
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The displacement d (in meters) of an object at time t (in seconds) is given as
(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?
Landscaping Pat needs to determine the height of a tree before cutting it down to be sure that it will not fall on a nearby fence. The angle of elevation of the tree from one
position on a flat path from the tree is 30°, and from a second position 40 feet farther along this path it is 20°. What is the height of the tree?
Find the area of the triangle. Round answer to two decimal places.
In the given problem solve the triangle using either the law of sines or law of cosines-
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:
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