Sum of the First n Terms of an Arithmetic Sequence (Formula 1)
Formula: S n = (n(a₁ + a n))/(2) Conditions: Given the first term a₁, the last term a n, and the number of terms n. Explanation: Calculates the sum of the firs…
Syllabus path: Functions › Sequences › Arithmetic Sequence: Formula & Summation
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CSCA Mathematics Formula Reference
Formula and explanation
Formula: S n = (n(a₁ + a n))/(2) Conditions: Given the first term a₁, the last term a n, and the number of terms n. Explanation: Calculates the sum of the first n terms using the first and last terms.
Related tutorial and examples
Arithmetic Sequence: Formula & Summation
Arithmetic Sequence: Formula & Summation 1. Core Concepts Definition: A sequence is called an Arithmetic Sequence if the difference between any term (from the 2nd term) and its preceding term is a constant. This constant is called the Common Difference ( d ). Mathematical Express…
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