Analyt'cal Methods For each function, compute the two indicated approximations of the net area under the curve. Show your calculation for each maa: [2 for each part}. 1|.|'I.I'rite out each approximation symbolically using sigma notationJ with index i, and then compute it using your'n-BEKPro, rounding to 3 decimal places. 4. f{x] = {1.5a}; , over [L6] using left endpoints for H = 3 and also for n = l, (so, L3 and LN.)