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Find dy /dx : x^3+x^2 y+ xy^2+y^3=81

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asked Jan 17, 2018 in Mathematics by sforrest072 (157,439 points) ● 61 ● 411 ● 949

Find dy /dx : 

x3+x2 y+ xy2+y3=81

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answered Jan 17, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Jan 17, 2018 by sforrest072
 
Best answer

The given relationship is x3 +x2 y +xy2+y3=81

Differentiating this relationship with respect to x, we obtain

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