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Geometric series test

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  • Question 1:
    1 pts
    		Which of the following is a Geometric Series?
    1, 2, 3, 4,...
    1, -1, 1,-1,...
    2, 4, 6, 8,...
    2, 3, 5, 8,...
  • Question 2:
    1 pts
    		Which of the following is not a Geometric Series?
    1,-1, 1, -1,...
    1, 1, 1, 1,...
    16, 8, 4, 0,...
    81, 27, 9, 3,...
  • Question 3:
    1 pts
    		The next term in geometric series 3, 6, 12 is

    $26$

    $28$

    $24$

    $20$

  • Question 4:
    2 pts
    		The next term in geometric series 16, 4, 1 is
    $-1$
    $\frac{1}{4}$
    $\frac{1}{2}$
    $-\frac{1}{4}$
  • Question 5:
    2 pts
    		The first term of Geometric Series is 5 the ration between subsequent numbers is 2. What is the fourth term in the series?

    $20$

    $40$

    $60$

    $80$

  • Question 6:
    2 pts
    		The second term of a Geometric Series is 25 and the third term is 125. What is the first term in the series?

    $1$

    $5$

    $10$

    $20$

  • Question 7:
    2 pts
    		The first term of a Geometric Series is 2 and the 10th term is 2. What is the 100th term in the series?

    $2$

    $20$

    $200$

    $20000$

  • Question 8:
    3 pts
    		What is the 10-th term in this series 64,32,16
    $\frac{1}{2}$
    $\frac{1}{4}$
    $\frac{1}{8}$
    $\frac{1}{16}$
  • Question 9:
    3 pts
    		What is the sum of the first 6 terms in this series 3,6,12,...

    $279$

    $179$

    $289$

    $189$

  • Question 10:
    3 pts
    		$1 + \frac{1}{2} + \frac{1}{4} + \frac{1}{8}. . . = ?$
    $\infty$
    $1$
    $2$

Complex numbers

Sequences and series