Find taylor poly of f(x)=ln(1+x) of order 2 about x=0

done !

found it P2(x)= x

when they say order that means terms right! i,e p2(x)=f(0)+f'(0)x

now the next part which is abit tricky

Find the remainder R2(x)at the point x=1

and use it to prove 13/24< ln2 <5/6

Thanks