Give the domain of the function.f(x) = 
A. 
B. 
? 
C. [0, ?)
D. (-?, ?)
Answer: D
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y) = xye-y
A. fx(x, y) = ye-y; fy(x, y) = xe-y(y - 1) B. fx(x, y) = ye-y; fy(x, y) = xe-y C. fx(x, y) = ye-y; fy(x, y) = xe-y(1 - y) D. fx(x, y) = ye-y; fy(x, y) = - xye-y
Mathematics
Find the area of the specified region.Inside the lemniscate r2 = a2 sin 2?, a > 0
A. ?a2
B. 0
C. a2
D. 
Mathematics
Find the slope-intercept form of the equation of the line that passes through the point P and makes angle ? with the positive x-axis.P = (7, 2), ? = 210°
A. y = 
x + 
B. y = 
x - (7
+ 2)
C. y = 
x - 
D. y = 
x + 
Mathematics
Graph the function.f(x) = ex
A. 
B. 
C. 
D. 
Mathematics