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3. There are two rms, both producing the same good. Firm i's oost of producing q, units of the good is qu; the price at which output is sold when the total output is Q is PQ). Each rm's strategic variable is output, as in Cournots model, but the rms make their decisions sequentially, rather than simultaneously: one rm chooses its output, then the other rm does so, knowing the output chosen by the rst rm. Suppose (EL-(rm : q? for 1' = 1,2, and FAQ] 2 or Q for all Q E o: [with PQ) = U for Q I} or). Find the equilibrium outoome and compare the equilibrium outcome with the Nash equilibrium of Cournots game under the same assumptions