Ask Question
23 July, 14:57

What is the sum of the first 14 terms of the sequence

an = 6n - 12

+2
Answers (1)
  1. 23 July, 18:14
    0
    Term 1 = 6*1 - 12

    Term 1 = 6 - 12

    Term 1 = - 6

    Term 14 = 6*14 - 12

    Term 14 = 84 - 12

    Term 14 = 72

    Number of terms = 14

    Sum = (term1 + Term14) * number of terms / 2

    Sum = (-6 + 72) * 14/2

    Sum = 66*14/2

    Sum = 462
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is the sum of the first 14 terms of the sequence an = 6n - 12 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers