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Sumu i limes niza voli analiza | Sums, limits and other problems #4

Neka je a_n= \left(\frac{1}{2}\right)^n i neka je b_n= \sin\left(n\frac{\pi}{6}\right). Odredite: \sum_{n=0}^{\infty}a_nb_n. Rezultat zaokružite na 4 decimale.

Let a_n= \left(\frac{1}{2}\right)^n and let b_n= \sin\left(n\frac{\pi}{6}\right). Find the sum: \sum_{n=0}^{\infty}a_nb_n. Round the result to 4 decimal places.