TRIGONOMETRY
TRIG FUNCTIONS – PART 1 (1.5) NAME_______________________________
1. Consider the transformation [pic] where [pic]and [pic] are positive constants.
How does the value of each constant affect the graph of the standard sine function. Be specific.
2. The following function describes the air temperature in Fairbanks, Alaska as a function of time.
[pic]
A. Without graphing this function, determine its period, amplitude, and average value.
B. Graph one period of this function (beginning with [pic]).
3. The rate of intake during a respiratory cycle (liters/sec) for a person at rest is proportional to a
sine wave with period six seconds. Suppose the rate is 0.85 liters/sec when [pic] sec.
A. Find an equation that describes the rate of intake as a function of time.
B. Graph one cycle of your equation. Which part corresponds to inhaling? Exhaling?
4. Find the exact value A. [pic] B. [pic]
5. An angle [pic] is drawn in standard position with its terminal side in quadrant III.
If [pic], find the value of [pic].
6. Solve for [pic]: [pic] where [pic].
7. Find exact values for each: A. [pic] B. [pic]
8. Simplify each: A. [pic] B. [pic]
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