Find the eccentricity e of the ellipse.x2 + 2y2 = 6
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the specified minor and cofactor for the matrix A.M22 and A22 if A = 
A. M22 = 21 and A22 = 21 B. M22 = -21 and A22 = 21 C. M22 = 21 and A22 = -21 D. M22 = -21 and A22 = -21
Mathematics
Find the dot product v ? w.v = -12i - 15j,
w = -5i - 8j
A. 120 B. 180 C. 60 D. -60
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.5x + 5y + 2z = -1520x + 21y + 9z = -110x + 11y + 5z = 15
A. 
B. 
C. 
D. No solution
Mathematics
Find the derivative of the function.y = ecos x
A. 
= -esin x
B. 
= sin x ecos x
C. 
= -cos x esin x
D. 
= -sin x ecos x
Mathematics