Arithmetic and Geometric Progressions Quiz
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Questions and Answers

What is the common difference in the arithmetic progression 62, 60, 58?

  • 4
  • -4
  • -2 (correct)
  • 2

    • In a geometric progression with a first term of 5 and a common ratio of 2, what is the 4th term?

  • 20 (correct)
  • 10
  • 30
  • 40

    • What is the formula for the sum of the first n terms in an arithmetic series?

    What describes an arithmetic progression?

    <p>A sequence where terms increase or decrease by a constant number.</p> Signup and view all the answers

    What is the nth term formula for an arithmetic series?

    <p>a + (n-1)d</p> Signup and view all the answers

    Which of the following formulas represents the sum of the first n terms in a geometric series?

    <p>S_n = rac{a(1-r^n)}{1-r}</p> Signup and view all the answers

    What condition must be met for the sum of infinite terms in a geometric series to be calculated?

    <p>The absolute value of the common ratio must be less than 1.</p> Signup and view all the answers

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