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Write the recursive formula for the geometric sequence. a1 = -2 a2 = 8 a3= -32

Write the recursive formula for the geometric sequence. a1 = -2 a2 = 8 a3= -32
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4 votes
Write the recursive formula for the geometric sequence.

a1 = -2 a2 = 8 a3= -32

asked
User Kchetan
by
8.3k points

1 Answer

5 votes

Answer:

recursive

a(1) = -2 ; a(n) = -4 * a(n - 1)

explicit

a(n) = -2 * (-4)^(n - 1)

answered
User BhushanVU
by
8.4k points
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