How do you find the derivative of # x#?
1 Answer
Jul 30, 2016
Power rule or limit definition.
Explanation:
The power rule gives it to you straight away:
#d/(dx) x = d/(dx) x^1 = 1*x^0 = 1#
Alternatively using the limit definition.
Let
#=lim_(h->0) ((a+h)-a)/h#
#=lim_(h->0) h/h#
#=lim_(h->0) 1#
#=1#
