Mathematics, 03.02.2021 20:50 belindajolete

Pls help me The formula for any geometric sequence is an = a1 · rn - 1 , where an represents the value of the n th term, a1 represents the value of the first term, r represents the common ratio, and n represents the term number. What is the formula for the sequence 2, -6, 18, -54, ...?

an = 2 · 3 n - 1
an = 2 · (-3) n - 1
an = -3 · 2 n - 1
an = 3 · 2 n - 1

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Pls help me The formula for any geometric sequence is an = a1 · rn - 1 , where an represents the va...