Solve the problem.What area does the integral 
dx represent?
A. 7
B. 10
C. 3
D. -3
Answer: C
Mathematics
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Find the domain of the function.f(x) = 6x - 1
A. [1, ?) B. (-?, ?) C. (0, ?) D. (-?, 0) ? (0, ?)
Mathematics
Expand, where i2 = -1.
4
A. 1 B. -1 C. 1 - i D. 1 + i
Mathematics
Determine whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point.f(x) = -4x2 + 4x
A. minimum; 
B. minimum; 
C. maximum; 
D. maximum; 
Mathematics
A point on the terminal side of an angle ? is given. Find the exact value of the indicated trigonometric function of ?.(- 
, 
)Find cos ?.
A. - 
B. - 
C. 
D. 
Mathematics