(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Consider

y = 2a + ax

find dy/dx

dy/dx = a

That is right is it not, as a is treated merly as a constant

Now consider this question:

Use the substitution y = vx to transform the equation:

dy/dx = (4x+y)(x+y)/x²

into

x(dv/dx) = (2+v)²

According to the mark scheme they

differentiate dy/dx implicitally

y = vx

dy/dx = x(dv/dx) + v

BUT why have we differentitated implicitally?

Thanks :)

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# Homework Help: Product Rule

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