Find the indicated term for each geometric sequence.
1.8,64,512, ... ; a8
2.10,1,1/10,...;a6
3.8/27,8/9,8/3 ...
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Find the indicated term for each geometric sequence.
1.8,64,512, ... ; a8
2.10,1,1/10,...;a6
3.8/27,8/9,8/3 ...
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Answer:
1. an = a1 r^n-1
a8 = (8) (8^8-1)
a8 = (8) (8^7)
a8 = (8) (2,097,152)
a8 = 16,777,216
2. an = a1 r^n-1
a6 = (10) (1/10^6-1)
a6 = (10) (1/10^5)
a6 = (10) (0.00001)
a6 = 0.0001
3. 8/1