In Exercises 41 and 42, (a) write formulas for ƒ ∘ g and g ∘ ƒ and find the (b) domain and (c) range of each. 41. ƒ(x) = 2 - x2, g(x) = sqrt(x + 2) 42. ƒ(x) = sqrt(x), g(x) = sqrt(1 - x)

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