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Figure 5-7b shows the graphs of y1 = cos( 60) and y2 = cos cos 60 as they might appear

Precalculus with Trigonometry: Concepts and Applications | 1st Edition | ISBN: 9781559533911 | Authors: Foerster ISBN: 9781559533911 468

Solution for problem R.2 Chapter 5-7

Precalculus with Trigonometry: Concepts and Applications | 1st Edition

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Precalculus with Trigonometry: Concepts and Applications | 1st Edition | ISBN: 9781559533911 | Authors: Foerster

Precalculus with Trigonometry: Concepts and Applications | 1st Edition

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Problem R.2

Figure 5-7b shows the graphs of y1 = cos( 60) and y2 = cos cos 60 as they might appear on your grapher. a. Without actually plotting the graphs, identify which is y1 and which is y Explain how you chose them. From the graphs, how can you conclude that the cosine function does not distribute over subtraction? Figure 5-7b b. Write cos ( 60) as a linear combination of sine and cosine. Verify graphically that your answer is correct. Section 5-7: Chapter Review and Test 2003 Key Curriculum Press 215 c. Write the trigonometric expression 8 cos + 15 sin as a single sinusoid with a phase displacement for y = cos x. Plot the graphs of the given expression and your answer. Explain how the two graphs confirm that your answer is correct. d. Write the circular function expression 9 cos x + 7 sin x as a single sinusoid with a phase displacement for y = cos x. Make a table of values of the given expression and your answer. Explain how the numbers in the table indicate that your answer is correct. e. Figure 5-7c shows the graphs of y1 = 4 cos x + 3 sin x and y2 = 2 as they might appear on your grapher. Solve the equation 4 cos x + 3 sin x = 2 algebraically for x [0, 2 ]. Show that the solutions agree with the graph. Figure 5-7c R

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Wednesday, March 23, 2016 Week 7 : Dreams Freud and the Psychodynamic Perspective - Basic structures of the mind include the id, ego, and superego • Id: literally, the “it”, the most primal, animalistic instincts • Ego: The rational part of our brain that balances the id and superego • Superego: The most moral part of our minds • This implies not just the mental component, but the physical component as well - The “Freudian” unconscious • he believed that the id is the most truly unconscious state • thanatos: believed that the greatest libido pleasure is death. All your needs are taken care of in a way - Dreams-Manifest content / latent content • Manifest content is the content of dreams we

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Textbook: Precalculus with Trigonometry: Concepts and Applications
Edition: 1
Author: Foerster
ISBN: 9781559533911

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Figure 5-7b shows the graphs of y1 = cos( 60) and y2 = cos cos 60 as they might appear