Finding $f^{(11)}(2)$ from taylor series $$\sum (-\frac{2^n}{3^{n+1}})(x-2)^{2n+2}$$
Given $g(x)=xf(x)$. But how does this hint help?
The answer looks like :
$$g(x)=(x-2)f(x)+2f(x)$$
but how does this translate to $xf(x)$?
The rest of the answer
UPDATE: full question, but I am on part ii