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    Arithmetic Sequences

    Sequências Aritméticas

    The first term of an arithmetic sequence is 33 and the common difference is 55. Find the 10th term.

    un=u1+(n−1)du_n = u_1 + (n - 1)d

    Solution

    u10=3+(10−1)×5=3+45=48u_{10} = 3 + (10 - 1) \times 5 = 3 + 45 = 48