Which of the following series is converges or diverges. If the series converges, find its sum? 2n+2 1. Σ=o 32n 2. Σπ=12(cosā)" 3. En=1(n

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A: a) Given two points P (2, -5, -1) and T (-2, 4, 3) find vector PT .  b) Given vector PE = [−1, 5, a]…

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