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Solução_Calculo_Stewart_6e

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F.<br />

174 ¤ CHAPTER 4 APPLICATIONS OF DIFFERENTIATION<br />

TX.10<br />

decreasing on (0, 3) and (3, ∞). F. Local maximum value f(0) = − 1 9 .<br />

H.<br />

G. y 00 = −2(x2 − 9) 2 +(2x)2(x 2 − 9)(2x)<br />

(x 2 − 9) 4 = 6(x2 +3)<br />

(x 2 − 9) 3 > 0 ⇔<br />

x 2 > 9 ⇔ x>3 or x 0 ⇔ −3

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