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What is the explicit rule for the geometric sequence?
a1=4; an=1/3 x an-1


What Is The Explicit Rule For The Geometric Sequence A14 An13 X An1 class=

Sagot :

Answer:

  (c)  an = 4·(1/3)^(n-1)

Step-by-step explanation:

The explicit rule for a geometric sequence with first term a1 and common ratio r is ...

  an = a1·r^(n-1)

The factor in the recursive rule tells you the common ratio is 1/3, so the explicit rule is ...

  an = 4·(1/3)^(n-1) . . . . . . matches choice C

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