Annual U.S. imports from a certain country in the years 1996 through 2003 can be approximated by r(t)=t2+3.6t+47(1t9) billion dollars, where e represents time in years since 1995. Annual U.S. exports to this country in the same years can be approximated by E(t)=0.5t21.4t+16(0t10) bililion dollars: Assuming the trends shown in the above models continue indefinitely, numenically estimate the following. (If an answer does not exist, enter DNE.) limt+E(t)andlimt+f(t)E(t) limt+f(t)= limt+I(t)E(t)= Annual U.S. imports from a certain country in the years 1996 through 2003 can be approximated by r(t)=t2+3.6t+47(1t9) billion dollars, where e represents time in years since 1995. Annual U.S. exports to this country in the same years can be approximated by E(t)=0.5t21.4t+16(0t10) bililion dollars: Assuming the trends shown in the above models continue indefinitely, numenically estimate the following. (If an answer does not exist, enter DNE.) limt+E(t)andlimt+f(t)E(t) limt+f(t)= limt+I(t)E(t)=