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Adam1994

  • 4 years ago

find the first term of the arithmetic sequence having the data given. an = 48, Sn = 546, n = 26

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  1. saifoo.khan
    • 4 years ago
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    Do you know the formula?

  2. Adam1994
    • 4 years ago
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    ish... not that well. Im just starting this and I just need some examples done.

  3. Dockworker
    • 4 years ago
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    \[\S_{n}=\frac{n}{2}(a_{1}+a_{n})\]

  4. Kreshnik
    • 4 years ago
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    Sum.. \[\LARGE Sn=\frac n2 [2a_1+(n-1)\cdot d]\] \[\LARGE a_n=a_1+(n-1)\cdot d\]

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