Question
Find the nth term $a_n$ of each geometric sequence. When given, $r$ is the common ratio.$$a_6=243 ; \quad r=-3$$
Step 1
The nth term \( a_n \) of a geometric sequence can be expressed as: \[ a_n = a_1 \cdot r^{n-1} \] where \( a_1 \) is the first term and \( r \) is the common ratio. Show more…
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