What are your answers?
Spoiler:
ok i dont know how to write square root so '\' means 'square root'
Q1. Differentiate by using the Chain Rule
f(x)=\2x-1
Square root of 2x-1
Q2. Differentiate by First Principals
f(x)=\2x-1
I already know that the answers should be the same but i cant work it out using first principals and keep ending up with f'(x)=1