I need to find the Taylor polynomial of degree 4 expanded about a=4 for the function f(x)=squareroot of (x)=x^(1/2)
This is what I've started with but I'm not sure how to proceed and if I even started correctly:
f'(x)(-1/2)x^(-1/2)=1/2sqrt(x)
f"(x)=(-1/4)x^(-3/2)=-1/4x^3/2...