anonymous
  • anonymous
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
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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AravindG
  • AravindG
first of all what do u see as relation between each consecutive term?
anonymous
  • anonymous
i have no idea
anonymous
  • anonymous
Lol...It is a G.P

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More answers

anonymous
  • anonymous
With Common Ratio 4
AravindG
  • AravindG
9*4=36 36*4=144
AravindG
  • AravindG
nw u understand ?
anonymous
  • anonymous
okay
AravindG
  • AravindG
nth term= \(\large a r^{n-1}\) for a GP Where a is first term r is common ratio
AravindG
  • AravindG
nw tell me what will be the answer?
anonymous
  • anonymous
2304
anonymous
  • anonymous
an = 9 • 4n
AravindG
  • AravindG
try again ? ar^n-1 !!
AravindG
  • AravindG
remember
AravindG
  • AravindG
@miley23 do u get it ?
anonymous
  • anonymous
an = 4 • 9n - 1
AravindG
  • AravindG
why so ?
AravindG
  • AravindG
look at the formula !!!
AravindG
  • AravindG
a comes first !
anonymous
  • anonymous
an = 9 • 4n - 1
AravindG
  • AravindG
finally :) \[\checkmark \]
anonymous
  • anonymous
thanks

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