Hello guys,
I am now trying to understand the proof of Power Rule.
In the attachment I highlighted in yellow where I am stuck.
Why the (k+1).x^k becomes d/dx .x^k ?
Btw, as far as I know a derivative of a variable with respect to itself is 1
Thank you in advance.
I am now trying to understand the proof of Power Rule.
In the attachment I highlighted in yellow where I am stuck.
Why the (k+1).x^k becomes d/dx .x^k ?
Btw, as far as I know a derivative of a variable with respect to itself is 1
Thank you in advance.