Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a vector of magnitude 
tangent to the circle x2 + y2 = a2 + b2 and pointing in the clockwise direction.
A. xi - yj
B. xi + yj
C. -yi + xj
D. yi - xj
Answer: D
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = xy2 + yex2 + 5
A. 
= 2yex2(1 + 2x2); 
= 2x; 
= 
= 2y + 2xex2
B. 
= 2yex2; 
= 2x; 
= 
= 2y + 2xex2
C. 
= yex2(1 + 2x2); 
= x; 
= 
= y + xex2
D. 
= 2yex2; 
= 2x; 
= 
= 2xex2
Mathematics
Solve the formula for the specified letter.F = 
for m2
A. m2 = 
B. m2 = 
C. m2 = 
D. m2 = FGm1d2
Mathematics
Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = - 
f(x)
A. 
B. 
C. 
D. 
Mathematics
Graph.y = - 
(x + 5)2 - 3
A. 
B. 
C. 
D. 
Mathematics