Asked by kayla

Find f'(a) for

f(x)=13x/3x+1
Answered by bobpursley
f'= 13/(3x+1) - 13x*3/(3x+1)^2

check that carefully.

If f=u*v^-1
then f'=u' * v^-1 -u*v^-1 * v'
Answered by kayla
Thank you so much and it worked!!! i really appreciate it!
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