Having trouble differentiating this

[shanedog11]

i am having trouble differentating this function with respect to y

c= 425 + 1.2ln(y/(y+2)

 

[pbandjay]

Have you tried using the log rules? They might help.

$$\ln \frac{y}{y+2} = \ln y - \ln(y+2)$$

 

[shanedog11]

so
dc/dy=1.2(1/y-1/(y+2))

therefore in its simplest form:

dc/dy=1.2( 2/y(y+2) )

 

[HallsofIvy]

Was there a reason for posting this under "differential equations"? I am moving it to Calculus.