please help with this question as the picture below

5.2. Censider the Freudemtein and Ruth teat funetinn fIIIII =_.{1}1 +fi{1}2. I E RE, where zj = 15 +11 +{[5 .'-I'.'2}J:2 1}J:2, iii-1(1) = 19 +:u:1 +I|:[:u::a + 111:; PHI? ['1] Shaw that the turret-inn f has three statinnary paints. Find them and pm nat III-DE: is a glehca] minimizer, DIIE is a mint luea] minimum and the third is a saddle Paint. {ii} Use Elam tn empljl' the fulluwiug three methuds cm the problem of minimizing f: I. the gradient methed with backtracking and parameters [5, EH3} = [I,D.5,D.5]. 2. the hybrid Gradient-Newten Methed withparameters {5, Eng} = {U.5,D.5}