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Find the ninth term of the geometric sequence 4, 16, 64
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Find the ninth term of the geometric sequence 4, 16, 64

User Mike Johnson
by
4.5k points

1 Answer

5 votes

Answer:

262,144.

Explanation:

an = a1r^(n-1)

Here a1 = 4, n = 9 and r = 4.

ninth term = 4(4)^(9-1)

= 4^9

= 262,144.

User Picrap
by
4.2k points
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