1.what is the sum of the first 7 terms of the geometric sequence 1, 4, 16, ...?
2. Find the sum of the first 8 terms of the geometric sequence 2,4,8,16..?
3.what is the sum of the first 13 terms of 2, -2, 2, -2,?
4. Find the sum of the first 5 terms of the geometric series 1 + 10 + 100 + 1000 +...?
5. Find the sum of the indicated number of terms in the geometric sequence with a1 = 5, r = -1 , n = 12
2. Find the sum of the first 8 terms of the geometric sequence 2,4,8,16..?
3.what is the sum of the first 13 terms of 2, -2, 2, -2,?
4. Find the sum of the first 5 terms of the geometric series 1 + 10 + 100 + 1000 +...?
5. Find the sum of the indicated number of terms in the geometric sequence with a1 = 5, r = -1 , n = 12
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Answer:
1.64,256,1024,4096
2.32,64,128,256
3.
4.
5.
Step-by-step explanation:
5.r1=-1. a1=5. n=12
a12=5+(12-1)-1
a12=5+(11)-1
a12=-16