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1 Introduction The composition of two functions g and f is the new function we get by performing f first, and then performing g For example, if we let f be the function given by f(x) = x2 and let g be the function given by g(x) = x3, then the composition of g with f is called gf and is worked outF(b) 0 The function f(x) is continuous on a;b, and therefore it contains a zero in the intervalThis is our focus L Hopital S Rule Wikipedia ƒXƒgƒŠ[ƒg "¯Œ^ ƒŒƒfƒB[ƒX