QUESTION IMAGE
Question
exponents and exponential functions
finding the next terms of a geometric sequence with signed numbers
the first three terms of a geometric sequence are as follows.
3, -6, 12
find the next two terms of this sequence.
give exact values (not decimal approximations).
3, -6, 12, \\(\square\\), \\(\square\\)
Step1: Find the common ratio \( r \)
In a geometric sequence, the common ratio \( r \) is found by dividing a term by its previous term. So, \( r=\frac{-6}{3}=-2 \).
Step2: Find the fourth term
To find the fourth term, multiply the third term (12) by the common ratio \( r=-2 \). So, \( 12\times(-2)= -24 \).
Step3: Find the fifth term
To find the fifth term, multiply the fourth term (-24) by the common ratio \( r=-2 \). So, \( -24\times(-2)=48 \).
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-24, 48