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Decio
9–26 Determine se a série é convergente ou divergente
∑n=1∞2n0.85\sum_{n=1}^{\infty} \frac{2}{n^{0.85}}∑n=1∞n0.852
∑n=1∞(n−1.4+3n−1.2)\sum_{n=1}^{\infty} \left(n^{-1.4} + 3n^{-1.2}\right)∑n=1∞(n−1.4+3n−1.2)
1+18+127+164+1125+…1 + \frac{1}{8} + \frac{1}{27} + \frac{1}{64} + \frac{1}{125} + \dots1+81+271+641+1251+…
1+122+133+144+155+…1 + \frac{1}{2\sqrt{2}} + \frac{1}{3\sqrt{3}} + \frac{1}{4\sqrt{4}} + \frac{1}{5\sqrt{5}} + \dots1+221+331+441+551+…
1+13+15+17+19+…1 + \frac{1}{3} + \frac{1}{5} + \frac{1}{7} + \frac{1}{9} + \dots1+31+51+71+91+…
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