Solve.x - y + z = 2x + y + z = -6x + y - z = -12
A. (3, -5, -4)
B. (3, -4, -5)
C. (-5, 3, -4)
D. (-5, -4, 3)
Answer: D
Mathematics
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Find the flux of the curl of field F through the shell S.F = (7 - y)i + (2 + x)j + z5k; S is the upper hemisphere of x2 + y2 + z2 = 9
A. 36? B. 2? C. 18? D. -4?
Mathematics
Solve by the substitution method. 3x - 13 = -y2x + 9y = -8
A. {(-5, -2)} B. {(-5, 2)} C. {(5, 2)} D. {(5, -2)}
Mathematics
Solve the differential equation.5y ' = ex/5 + y
A. y = 
B. y = 
C. y = xex/5 + cex/5
D. y = 
Mathematics
Solve the problem.
=
A. 15
B. 1
C. 
D. 15!
E. none of these
Mathematics