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timama [110]
3 years ago
14

What is the recursive rule for this geometric sequence? 12,−2,8,−32,...                     a1=1/2;an=−4⋅an−1                  

a1=−4;an=1/2⋅an−1                           a1=−1/2;an=4⋅an−1                              a1=1/2;an=2⋅an−1
Mathematics
2 answers:
Leto [7]3 years ago
5 0

a1=12;an=−4⋅an−1 would be the answer

xenn [34]3 years ago
4 0
A=1=-4;an=1/2.an-1 or it might be a1=1/2;an=4.an-1
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answer = the elder bother is 17 and the younger one is 15

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