derivative proof of $\frac{dx^2}{d x}$ is $2x$
40549
How to proof the the derivative of $x^2$ is $2x$?
139453
Prove that $\frac{1}{f'(a)} = \frac{1}{2\pi i} \int_C \frac{1}{f(z)-f(a)} dz$
49408
Proof of the derivative of ln(x)
120600
Real analysis derivate problem. How can I prove this?
91059
Why is $\frac{d^n}{dx^n}(y(x))$ the notation for the $n$th derivative of $y(x)$, instead of $\frac{d^n}{d^nx}(y(x))$?
43430
What exactly does $\frac{dx}{dy}$ mean?
3387
Derivative of $f(x)=|x|$
76589
When does product of derivatives equals derivative of products?
112898
Derivative of sin(x)/x at $0$ by definition of derivative
144713
Simple Calculus Proof
68538
Show that if $ A(t) \in \mathbb{R ^{n×n}}$ is a differentiable function of $t$ then $\frac{d(det A(t))}{dt}$
28096
Finding the derivative of $x\uparrow\uparrow n$
27884
How to show via induction the product rule for derivatives?
39451
Proving inequation with maximum and 2nd derivative
34081
Prove that $|f''(\xi)|\geqslant\frac{4|f(a)-f(b)|}{(b-a)^2}$
75548
second derivative of the inverse function
69378
The derivative of $x!$ and its continuity