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miley23

  • 2 years ago

Find an explicit rule for the nth term of the sequence. 9, 36, 144, 576, ... an = 9 • 4n - 1 an = 4 • 9n - 1 an = 9 • 4n an = 9 • 4n + 1

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  1. AravindG
    • 2 years ago
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    first of all what do u see as relation between each consecutive term?

  2. miley23
    • 2 years ago
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    i have no idea

  3. Yahoo!
    • 2 years ago
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    Lol...It is a G.P

  4. Yahoo!
    • 2 years ago
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    With Common Ratio 4

  5. AravindG
    • 2 years ago
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    9*4=36 36*4=144

  6. AravindG
    • 2 years ago
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    nw u understand ?

  7. miley23
    • 2 years ago
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    okay

  8. AravindG
    • 2 years ago
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    nth term= \(\large a r^{n-1}\) for a GP Where a is first term r is common ratio

  9. AravindG
    • 2 years ago
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    nw tell me what will be the answer?

  10. miley23
    • 2 years ago
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    2304

  11. miley23
    • 2 years ago
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    an = 9 • 4n

  12. AravindG
    • 2 years ago
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    try again ? ar^n-1 !!

  13. AravindG
    • 2 years ago
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    remember

  14. AravindG
    • 2 years ago
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    @miley23 do u get it ?

  15. miley23
    • 2 years ago
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    an = 4 • 9n - 1

  16. AravindG
    • 2 years ago
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    why so ?

  17. AravindG
    • 2 years ago
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    look at the formula !!!

  18. AravindG
    • 2 years ago
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    a comes first !

  19. miley23
    • 2 years ago
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    an = 9 • 4n - 1

  20. AravindG
    • 2 years ago
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    finally :) \[\checkmark \]

  21. miley23
    • 2 years ago
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    thanks

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