Derivate by division rule or nothing

Calculus Level 4

y = a x + b x 2 + c y= \dfrac {ax+b}{x^2+c} , find value of ( 2 x y ′ + y ) y ′ ′ ′ y ′ ′ ( x y ′ ′ + y ′ ) \dfrac {(2xy'+y)y'''}{y''(xy''+y')} . Write your answer from integer 1 to 10.


The answer is 3.

Mann Shah by Mann Shah , 21, India

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1 solution

Mr Yovan
Jul 24, 2016

I didint undersrand can someone explain me?

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