Rule For 81,27,9,3,1
Rule for 81,27,9,3,1
ANSWER :
The rule for sequence is
An = 81/3^(n - 1).
STEP BY STEP EXPLANATION :
An = A1 × Q^(n - 1)
An = 81 × (27/81)^(n - 1)
An = 81 × (1/3)^(n - 1)
An = 81 × 1^(n - 1)/3^(n - 1)
An = 81 × 1/3^(n - 1)
An = 81/3^(n - 1)
Therefore , the rule for sequence is An = 81/3^(n - 1).
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