Find
and
.f(x, y) = ln yx
A. = 0;
= -
B. = ln y;
=
C. = xln y;
= -
D. = ln y;
= - xln y
Answer: B
Mathematics
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A.
B.
C. 3
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A. 1, cis , cis
, cis
, cis
, cis
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