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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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Rework Problem 5 under the same conditions except that, at time t = 0, the object is at its resting position and moving down.
Find the distance from A to C across the gorge illustrated in the figure.
Find an exact value of each expression, without using a calculator
Solve each triangle.
Calculating Distances at Sea The navigator of a ship at sea spots two lighthouses that she knows to be 3 miles apart along a straight seashore. She determines that the angles formed between two line-of-sight observations of the lighthouses and the line from the ship directly to shore are 15° and 35°. See the illustration.
(a) How far is the ship from lighthouse P?
(b) How far is the ship from lighthouse Q?
(c) How far is the ship from shore?
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