How do you differentiate #f(x)=lnx+ln2x+3x# using the sum rule?
1 Answer
Nov 20, 2015
Explanation:
The derivative of
To find the derivative of
Therefore,
(Note that this is a use of the sum rule.)
The derivative of
(This is the sum rule.)
# = 1/x+1/x+3 = 2/x+3#
If you prefer to write the derivative as a single ratio, get a common denominator and write: