Solve the problem.Find the area of the region between the curve y = 4x/(1 + x2) and the interval 
of the x-axis.
A. 4 e5
B. 0
C. ln 5
D. 4 ln 5
Answer: D
Mathematics
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Find the angle between u and v in radians.u = 9i, v = 4i - 2j
A. 1.55 B. 0.46 C. 1.11 D. 1.21
Mathematics
Express the sum or difference as a product.sin 8x - sin 2x
A. 2 cos 2x cos 5x B. 2 sin 3x C. 2 sin 5x cos 3x D. 2 sin 3x cos 5x
Mathematics
Find the relative extrema, if any, of the function. Use the second derivative test, if applicable.
?
?
A. Relative minimum: 
B. Relative maximum: 
C. Relative minimum: 
D. Relative maximum: 
E. none
Mathematics
Find the composite function for the given functions and state the domain. f ? g for f(x) = 
and g(x) = 8x - 11
A. 8
- 11
B. 2
C. 2
D. 8
Mathematics