If sqrt((x²)+(y²))=x²y², find  (dy)/(dx) ?



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Posted on (Answer #1)

We have given

`sqrt(x^2+y^2)=x^2y^2`    (i)

squaring (i) both side

`x^2+y^2=x^4y^4`       (ii)

Differentiate (ii) with respect to x  implicitly





We have used following rules,

d(f(x).g(x))=d(f(x)). g(x)+ f(x). d(g(x)) -- product rule.


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