Wade Herrera
10/16/2024 · Senior High School

4. Uma PG infinita e decrescente, \( \left(?, \sqrt{\pi}, \frac{\pi}{2}, \frac{\pi^{\frac{3}{2}}}{4}, \cdots\right) \), sem o primeiro termo, tem como soma de todos os seus termos igual à \( \frac{4}{2-\sqrt{\pi}} \) e razão igual à \( \frac{\sqrt{\pi}}{2} \), qual é o valor do primeiro termo da PG.

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O primeiro termo da progressão geométrica é 2.

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