Find the first five terms, the common ratio, and the $n ^ { t h }$ term expressed in standard form of the geometric sequence $a _ { \mathrm { n } } = \frac { ( - 1 ) ^ { n } } { 3 ^ { n - 1 } }$ .

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The Answer of Find the first five terms, the common ratio, and the $n ^ { t h }$ term expressed in standard form of the geometric sequence $a _ { \mathrm { n } } = \frac { ( - 1 ) ^ { n } } { 3 ^ { n - 1 } }$ .

Find the First Five Terms, the Common Ratio, and The n