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If a1 = 6 and an -5an-1 + 4 then find the value of a4.
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1 vote
If a1 = 6 and an
-5an-1 + 4 then find the value of a4.

User Kyle A
by
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1 Answer

6 votes

9514 1404 393

Answer:

a4 = -666

Explanation:

Use the recursive definition repeatedly.

a1 = 6

a2 = -5(6) +4 = -26

a3 = -5(-26) +4 = 134

a4 = -5(134) +4 = -666

User David Brooks
by
4.8k points
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