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Viefleur [7K]
3 years ago
9

Find the 9th term of the geometric sequence 5, -25, 125, ...

Mathematics
1 answer:
arlik [135]3 years ago
6 0

Answer:

Step-by-step explanation:

a = 5

r = -5

n = 9

t_9 = a r^(n - 1)

t_9 = (-1)^n*5 (-5) ^ 8

t_9 = (-1)^9 *  5 *  (-5) ^8

t_9 = -1 ( 1953125)

t_9 = - 1953125

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