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Find a closed form for the following recurrence relations. Show your work. (a) an = −an−1,...

Find a closed form for the following recurrence relations. Show your work. (a) an = −an−1, a0 = 3 (b) an = an−1 − n, a0 = 5 (c) an = 2an−1 − 3, a0 = 2

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