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

Find the value of the following derivative at x=1:

d/dx(2v/u)

where u(1)=3, u'(1)=-4, v(1)=-2, v'(1)=5

3. The attempt at a solution

Differentiating the equation:

[(u)(2v') - (u')(2v)]/(u^2)

plugging in the values i get 14/9 as the value.

now my question arises from the derivative of 2v. Would it be just 2? or 2v' as v represents a 'complex base' (therefore using the chain rule)??

the question seems simple enough to me aswell but i just want to clarify this.

thanks.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Quick question on differentiation

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