Calculate the flux of the field F across the closed plane curve C.F = y3i + x3j; the curve C is the closed counterclockwise path formed from the semicircle 
0 ? t ? ?, and the straight line segment from (-2, 0) to (2, 0)
A. 4
B. 8
C. - 4
D. 0
Answer: D
Mathematics
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Find all solutions to the equation in the interval [0, 2?).cos 2x - cos x = 0
A. 
, 
, 
B. 0, 
, 
, 
C. 0, 
, 
D. No solution
Mathematics
Find the expression as the sine of an angle.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Evaluate the double integral below.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Solve the problem.The perimeter of an octagon with sides of equal length is 8 times the length of one side, s. If the perimeter is 104 meters, solving the equation 
will give the length of one side. Solve the equation.
A. s = 104 meters B. s = 13 meters C. s = 52 meters D. s = 26 meters
Mathematics