If a1 = 6 and an = 3 + 2(an-1), then a2 equals no links

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If a1 = 6 and an = 3 + 2(an-1), then a2 equals

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Thu Thảo 5 months 2021-08-30T09:51:46+00:00 1 Answers 7 views 0

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    2021-08-30T09:52:58+00:00

    Answer:

    15

    Step-by-step explanation:

    Given that a1 = 6

    an =  3 + 2(an-1),

    Substitute n = 2 into the formula

    a2 = 3 + 2(a1)

    a2 = 3 + 2(6)

    a2 = 3+12

    a2 = 15

    Hence the second term of the sequence is 15

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )