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The arithmetic mean of the numbers 2sin2∘,4sin4∘,6sin6∘,…,180sin180∘ is tank∘. Then the least positive integral value of k is

Answer» The arithmetic mean of the numbers 2sin2∘,4sin4∘,6sin6∘,…,180sin180∘ is tank∘. Then the least positive integral value of k is


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