Write an nth term rule for r=1/3 and a_1=45

Messiah Sutton

Messiah Sutton

Answered question

2022-11-20

Write an nth term rule for r = 1 3 and a 1 = 45

Answer & Explanation

brulotfao

brulotfao

Beginner2022-11-21Added 16 answers

The rule for finding the nth term in a geometric sequence is.
Reminder | a a a n = a r n - 1 a a | ̲ ¯
where a represents the 1st term.
here a = 45 and r = 1 3
a n = 45 × ( 1 3 ) n - 1 = 45 ( 1 3 ) n - 1

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