Derivative of $|x|$ using definition of the derivative.
119907
Finding the Derivative of |x| using the Limit Definition
32281
Derivative of convolution
27862
Symbols of derivatives
125774
Derivative of $a^x$ from first principles
117944
what is the use of derivatives
157918
Finding the derivative of $x^x$
64437
Proof by induction (power rule of the derivative)
89057
How does one properly define the derivative of one operator-valued function?
106013
Given $f(x) = x + |x|$ for what values of $x$ is $f$ differentiable
75548
second derivative of the inverse function
30723
Second derivative "formula derivation"
38192
Derivative of inverse function at a point.
135941
Derivative of $|x|^\alpha$
84597
Derivative of $(1-x)^{-2}$
66639
Second Derivative
60321
Use the definition of derivative to prove $\lim_{x\to 0}\ln(x+1)/x =1$
146318
Derivative of f(x)=arth(lnx)