How do you find the derivative of y=ln(5x)y=ln(5x)?
3 Answers
Jul 29, 2014
y'=1/x
Explanation
Suppose,
y=ln(b(x)) then using Chain Rule,
y'=1/(b(x))*(b(x))' Similarly following for the above function yields,
y'=1/(5x)*(5x)'
y'=1/(5x)*5
y'=1/x
Mar 14, 2015
A student comfortable with the natural logarithm function and its properties might think of this:
One could reason as follows:
But
Therefore,
Mar 24, 2015
Using the Chain Rule you'll get:
(Derive