Find the indicated term of the geometric sequence. (Show your solution).
1. 2,4,8,…a7 ?
2. 15,5,5/3,…a6?
3. 7th term of 3,9,27,…
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Find the indicated term of the geometric sequence. (Show your solution).
1. 2,4,8,…a7 ?
2. 15,5,5/3,…a6?
3. 7th term of 3,9,27,…
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Answer:
To find the common ratio:
FORMULA:
1) a7=256
GEOMETRIC SEQUENCE:
2) a6=5/81
GEOMETRIC SEQUENCE:
3) a7=2187
GEOMETRIC SEQUENCE:
Answer:
formula: an=a1r^n
1. a7= 256
a7= 2(2)⁷
2. a6 = 5/729
a6= 15(1/3)⁷
3. a7 = 6561
a7= 3(3)⁷