1. 65
2. 49,152
correct me if im wrong<3
1.Sequence is 5*1, 5*2, 5*4, 5^8, ..., 5*2^(n-1) so 13th term is 5*2^12=5*4096=20480
2.65536
Answer: The sum of the geometric progression 3, 12, 48, … if there are 8 terms is 65536.
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Answers & Comments
1. 65
2. 49,152
correct me if im wrong<3
1.Sequence is 5*1, 5*2, 5*4, 5^8, ..., 5*2^(n-1) so 13th term is 5*2^12=5*4096=20480
2.65536
Answer: The sum of the geometric progression 3, 12, 48, … if there are 8 terms is 65536.