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Solução_Calculo_Stewart_6e

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F.<br />

TX.10 SECTION 4.3 HOW DERIVATIVES AFFECT THE SHAPE OF A GRAPH ¤ 155<br />

27. We use Exercise 26 with f(x) = √ 1+x, g(x) =1+ 1 2<br />

x,anda =0.Noticethatf(0) = 1 = g(0) and<br />

f 0 (x) =<br />

1<br />

2 √ 1+x < 1 2 = g0 (x) for x>0.SobyExercise26,f(b)

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