**TI92P*mainÿÿÿRcan þ¥Z¤CNewProb CDefine s(x)=2*(2*r(x))^2+2*Œ*r(x)*h(x) CDefine h(x)=v/(Œ*(r(x))^2) CDefine r(x)=x CDefine ds(x)=¼(s(x),x) Csolve(ds(x)=0,x) Ch(x)/(r(x))|x=v^(1/3)/2 à¯/