Evaluate the sum of the finite geometric series.

1+2+4+8 + ... + 128

Question

Mathematics

Monteen

3 December, 17:10

Evaluate the sum of the finite geometric series.

1+2+4+8 + ... + 128

+1

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Ryder Parrish · Answer 1

S = a * ((1 - r^ (n+1)) / (1-r)) S = 1 * ((1 - 2^ (7+1)) / (1-2)) S = 1 * ((1 - 2^8) / (1-2)) S = 1 * ((1 - 256) / (1-2)) S = 1 * ((-255) / (-1)) S = 255 So 1+2+4+8 + ... + 128 = 255

Evaluate the sum of the finite geometric series.1+2+4+8 + ... + 128

Evaluate the sum of the finite geometric series.

1+2+4+8 + ... + 128