Find Dxy.y = (2 - 2x) tanh-1 x
A. 
- 2 tanh-1 x
B. 
- 2 tanh-1 x
C. 
D. 
- 2 tanh-1 x
Answer: B
Mathematics
You might also like to view...
Solve the problem by integration.Find the volume of the solid that is generated by revolving the area bounded by the 
the curve 
x = 0, and x = 7 about the x-axis.
A. 1? ln 
B. 4? ln 
C. 2 ln 
D. 2? ln 
Mathematics
Find the midpoint of the line segment formed by joining the points P1 and P2.P1 = (9
, -7
); P2 = (12
, -2
)
A. 
B. 
C. 
D. (21
, -9
)
Mathematics
Factor the expression.2x4 - 8x2
A. 2x2(x2 - 4) B. 2x(x - 4) C. 2x2(x - 4) D. 2x(x2 - 4)
Mathematics
Graph using the x- and y-intercepts.x - 2y = 4
A. 
B. 
C. 
D. 
Mathematics