Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, 0 < ? < 
Find cos(2?).
A. - 
B. - 
C. 
D. 
Answer: A
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Find the potential function f for the field F.F = - 
i + 
j - 
k
A. f(x, y, z) = 
- 
+ 
+ C
B. f(x, y, z) = 
+ C
C. f(x, y, z)= ln 
+ C
D. f(x, y, z) = ln (y - x - z) + C
Solve the problem.Find the area of the parallelogram determined by the points P(7, -5, 5), Q(6, 7, 10), 
and 
A. 
B. 
C. 3
D. 3
Provide an appropriate response.Describe the graph of the function f(x) = x + 3 if the domain is 
A. The graph consists of the four points (3, 3), (4, 3), (5, 3), and (6, 3). B. The graph consists of the four points (3, 6), (4, 7), (5, 8), and (6, 9). C. The graph consists of the four points (0, 6), (1, 7), (2, 8), and (3, 9). D. The graph is a line through the four points (3, 6), (4, 7), (5, 8), and (6, 9).
Tell which brand is the better buy.Brand A: 9 ounces for $5.31; Brand B: 12 ounces for $7.56
A. Brand A B. Brand B C. The brands are equal values. D. Not enough information is provided.