Find 
and 
.f(x, y) = xye-y
A. 
= ye-y; 
= xe-y
B. 
= ye-y; 
= xe-y(y - 1)
C. 
= ye-y; 
= xe-y(1 - y)
D. 
= ye-y; 
= - xye-y
Answer: C
Mathematics
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= 2 and 
Find 
and
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x + 1
A. Yes B. No
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B. 
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C. 3x - 1
D. 3x + 4
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