Question 1022785
{{{(x+y)^r=x^r+rx^(r-1)y+((r(r-1))/2!)x^(r-2)y^2+((r(r-1)(r-2))/3!)x^(r-3)y^3}}}
{{{x=100}}}
{{{y=-1}}}
{{{z=1/2}}}
{{{(100-1)^(1/2)=10-0.05-0.000125-0.000000625}}}
{{{sqrt(99)=9.94987}}}