xy-cos(xy)=-5

Using implicit differentiation, find DsubxY of xy-cos(xy)=-5
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1 Answer

xy-cos(xy)=-5, differentiating:

xdy/dx+y+sin(xy)(xdy/dx+y)=0,

(xdy/dx+y)(1+sin(xy))=0, (1+sin(xy)≠0 in general)

x(dy/dx)+y=0, dy/dx=-y/x.
by Top Rated User (1.2m points)

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