Arithmetic Sequence Sum

Calculate the sum of an arithmetic sequence given the first term, common difference, and number of terms. Shows the formula, last term, and sequence preview.

How to Use Arithmetic Sequence Sum

Enter the first term (a₁), common difference (d), and number of terms (n) to calculate the sum using Sā‚™ = n/2 Ɨ (a₁ + aā‚™). The tool shows the last term, sequence preview, and formula.

Step-by-Step Instructions

  1. Enter the first term of the sequence
  2. Enter the common difference between terms
  3. Enter how many terms to sum
  4. View the sum, last term, and formula

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