Determine the common ratio of the following geometric sequence.
___________ 1. 3, 15, 75, 375
___________ 2. 8, 32, 128, 512
___________ 3. 128, 64, 32, 16,8
___________ 4. 891, 297, 99,33,11
___________ 5. 1/3, 1/6, 1/12, 1/24
___________ 1. 3, 15, 75, 375
___________ 2. 8, 32, 128, 512
___________ 3. 128, 64, 32, 16,8
___________ 4. 891, 297, 99,33,11
___________ 5. 1/3, 1/6, 1/12, 1/24
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1. r=5
3x5=15 15+5=75
2. r=4
8x4=32 32x4=128
3. r=1/2
128x1/2=64 64x1/2=32
4. r=1/3
891x1/3=297 297x1/3=99
5. r=1/2
1/3x1/2=1/6 1/6x1/2=1/12