Question 4 (5 points) What's the explicit rule for the sequence 3, -6, 12, -24, 48, ...? A) $a_n = 3(-2)^{n-1}$ B) $a_n = 3(2)^{n-1}$ C) $a_n = 3(-2)^n$ D) $a_n = 2(-3)^{n-1}$
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Step 1: The sequence is a geometric sequence because each term is multiplied by -2 to get the next term. Show more…
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