Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = ln (x2 + y2)i + tan-1 
j; C is the region defined by the polar coordinate inequalities 5 ? r ? 6 and 
A. -2
B. 0
C. 61
D. 22
Answer: A
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Find all real numbers in the interval [0, 2?) that satisfy the equation.2 sin2 x = sin x
A. 
B. 
C. 
D. 
Use a proportion to solve the problem.To determine the number of fish in a lake, a park ranger catches 240 fish, tags them, and returns them to the lake. Later, 72 fish are caught, and it is found that 20 of them are tagged. Estimate the number of fish in the lake.
A. 67 fish B. 864 fish C. 345,600 fish D. 6 fish
Use the graph to find the intervals on which it is increasing, decreasing, or constant.
A. Increasing on (-3, -2) and (2, 4); decreasing on (-1, 1); constant on (-2, -1) and (1, 2) B. Decreasing on (-3, -2) and (2, 4); increasing on (-1, 1); constant on (-2, -1) and (1, 2) C. Decreasing on (-3, -1) and (1, 4); increasing on (-2, 1) D. Decreasing on (-3, -2) and (2, 4); increasing on (-1, 1)
Is the statement 
true or false?
What will be an ideal response?