Find the indicated relative minimum or maximum.Minimum of f(x,y) = x2 + y2 - xy,subject to x - y = 10
A. f(5, -5) = 75
B. f(5, 5) = 25
C. f(1, 2) = 3
D. f(2, -1) = 7
Answer: A
Mathematics
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Evaluate the integral by using a substitution prior to integration by parts.
A. x cos (ln x) + sin (ln x)+ C
B. 
[cos (ln x) + sin (ln x)] + C
C. x[cos (ln x) + sin (ln x)] + C
D. 
[cos (ln x) - sin (ln x)] + C
Mathematics
Write the fraction in simplest form.
A. 
B. 
C. 
D. 
Mathematics
Complete.20 km = 
mi (Round to the nearest tenth.)
A. 32.2 B. 12.4 C. 18.9 D. 21.2
Mathematics
Given matrix A, find the indicated minor or cofactor.Find the cofactor A12.A = 
A. 5 B. -9 C. 9 D. -2
Mathematics