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Mathematics 11 Online
OpenStudy (anonymous):

xcosy=1 Implicit Differentiation

OpenStudy (raden):

xcosy=1 cosy + x(-siny)y' = 0 cosy - (xsiny)y' = 0 cosy = (xsiny)y' y ' = cosy/xsiny = (1/x) * coty

OpenStudy (anonymous):

he is right...do you want explanation?

OpenStudy (anonymous):

I think I understood it, but please feel free to explain.

OpenStudy (anonymous):

The product rule is used to find the derivative and then solve for y'

OpenStudy (anonymous):

Why is x multiplied into -siny?

OpenStudy (anonymous):

xcosy=1 diff. w.r.t. x cosy+x(-siny)y'=0 or cosy=xsiny y' y'=cosy/xsiny

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