Let
W(s,t)=F(u(s,t),v(s,t))
, where
F,u
, and
v
are differentiable, and the following applies.
u(-5,-8),=-2,v(-5,-8)=2
u_(s)(-5,-8),=-6,v_(s)(-5,-8)=0
u_(t)(-5,-8),=-9,v_(t)(-5,-8)=6
F_(u)(-2,2),=-7,F_(v)(-2,2)=8
Find
W_(s)(-5,-8)
and
w_(+)(-5,-8)
.
w_(s)(-5,-8)=
w_(t)(-5,-8)=
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