Solve the equation using graphical methods. Round to the nearest thousandth when appropriate.
- 7 = 
- 7
A. x = 2
B. x = -2
C. x = -1
D. x = 1
Answer: C
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= cos ? - sin ?
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Assume the functions are one-to-one. Find the requested inverse.If g(-4) = 5, find g-1(5)
A. 7 B. 5 C. -4 D. 3
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?
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Solve the problem.A boy is flying a model airplane while standing on a straight line. The plane, at the end of a twenty-five foot wire, flies in circles around the boy. The directed distance of the plane from the straight line is found to be d = 25 cos 
where d is measured in feet and t is the time in seconds. If d > 0, the plane is in front of the boy; if d < 0, the plane is behind him. What is the amplitude? What is the period? Graph d over two periods beginning at t = 0. 
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