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ANDERSON
Determine a área da superficie de revolução gerada ao girar a função h(x)=12sen 2x′h(x) = \frac{1}{2}\text{sen } 2x'h(x)=21sen 2x′, para 0≤x≤π20 \leq x \leq \frac{\pi}{2}0≤x≤2π, ao redor do eixo x.
A 2π(2+ln(2+1))2\pi \left(\sqrt{2} + ln(\sqrt{2} + 1)\right)2π(2+ln(2+1));
B π(2+ln(2−1))\pi \left(\sqrt{2} + ln(\sqrt{2} - 1)\right)π(2+ln(2−1));
C π(2+ln(2+1))\pi \left(\sqrt{2} + ln(\sqrt{2} + 1)\right)π(2+ln(2+1));
D π(2−ln(2+1))\pi \left(\sqrt{2} - ln(\sqrt{2} + 1)\right)π(2−ln(2+1));
E 2π(2−ln(2−1))2\pi \left(\sqrt{2} - ln(\sqrt{2} - 1)\right)2π(2−ln(2−1));
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