Find the first three terms of the Taylor series in x - a.cos x, a = 
A. 1 - 
2 + 
3 - . . .
B. 1 - 
- 
2 + . . .
C. 
- 
2 + 
3 - . . .
D. 
Answer: D
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State the period of the function and graph.sin 
A. Period 2?
B. Period 2?
C. Period 2?
D. Period 2?
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 1; local maximum at x = -1; concave up on (-?, ?) B. Local minimum at x = 1; local maximum at x = -1; concave down on (0, ?); concave up on (-?, 0) C. Local minimum at x = 1; local maximum at x = -1; concave up on (0, ?); concave down on (-?, 0) D. Local minimum at x = 1; local maximum at x = -1; concave down on (-?, ?)
Determine the values of the given functions as indicated rounded to four decimal places. Find cos 75° by using 75° = 30° + 45°.
A. -0.2588 B. 0.7071 C. 0.9659 D. 0.2588
Add.
A. 690 B. 790 C. 780 D. 7900