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  • QUICK, can someone explain to me how to implicitly differentiate this problem
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Replying to QUICK, can someone explain to me how to implicitly differentiate this problem

forfun:
Ok so the problem is

x + xy + y = sin 2x

so i do implicit differentiation to both sides and get this as my answer...

y' = 2 cos 2x -2 / y

but i should be getting this...

y' = 2 cos 2x - 1 - y / x + 1

I thought i was taking the derivative of everything right and put in dy/dx for the y's, but i have no idea how they got to that answer, and my test is tomorrow!! ahhhhh

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